FAQs

A Flood Barrier is a dynamic solution for flood protection that ingeniously employs water itself. The NoFloods mobile barrier serves as a highly effective alternative to conventional sandbag dams, offering a range of consistent advantages. This innovative flood protection system presents the following key benefits:

• Our solution boasts remarkable manpower efficiency, requiring only 4 to 8 individuals to deploy a 1000-meter barrier in under 4 hours.
• The flexible tube sections can be efficiently deployed in sections of up to 200 meters (e.g., 10, 20, 30, 50, 100, or 200 meters).
• Ingenious Junctions facilitate the seamless connection of additional 200-meter sections, enabling the creation of barriers spanning 400, 600, 800 meters, and beyond.
• The system accommodates the connection of high-volume pumps to Terminals and Junctions, enhancing its flood protection capabilities.
• With a remarkably low weight of under 1.7 or 3.5 (depending on the model) kilograms per meter prior to deployment, this solution ensures agility and ease of use.
• The flood barriers offer versatile deployment options, whether as preventive measures or reactive interventions in already flooded areas.
• Standard sections of the NoFloods PRO 125 barrier have the capacity to withstand water pressure ranging from 37 to 180 centimeters.
• These adaptable barriers can be leveraged to create expansive mobile reservoirs, boasting volumes ranging from 1000 to 70,000 cubic meters.
• Beyond flood protection, these barriers can also effectively mitigate the impact of oil spills.
• By harnessing the power of water itself, the NoFloods Flood Barriers stand as a groundbreaking flood protection solution, outshining traditional sandbag approaches in terms of efficiency, versatility, and effectiveness.

Within our range of flood protection solutions, we proudly offer two distinct types of barriers: the NoFloods Pro Barrier and the NoFloods Basic Barrier. Each presents its unique features tailored to specific requirements:

• The NoFloods Barrier PRO employs a configuration that commences and concludes with sets of robust Aluminium Terminals. This system interconnects through two or three flexible tubes filled with water, effectively forming a strong barrier. Our standard configuration can be tailored to various lengths, spanning from 10 meters to up to 200 meters per section. By integrating Junctions between sections, lengths, and extensions become customizable, allowing for seamless
  expansion. This versatility ensures adaptability to specific locations and needs. The NoFloods Barrier Basic offers a simplified solution ideal for safeguarding shorter sections, up to 25 meters in length. Delivered in sections ranging from 5 to 25 meters, this variant accommodates extension by securely linking tubes together. While maintaining the same hydraulic principles, this option forgoes the use of Terminals and Junctions, along with the associated benefits they offer.

Additionally, the NoFloods Mobile Barrier is available in two distinct sizes, catering to diverse demands:

• Size 60: Incorporating tubes with a diameter of 60 cm.
• Size 125: Featuring tubes with a diameter of 125 cm.
• Size 250: Incorporating tubes with a diameter of 250

Furthermore, the NoFloods Mobile Barrier encompasses two distinct models:

• TwinTube: Comprising two interlinked tubes for enhanced performance.
• TripleTube: Consisting of three interconnected tubes, providing advanced flood protection capabilities.

With these meticulously designed variations, we ensure that our flood protection solutions can be precisely tailored to diverse contexts and needs while maintaining the core hydraulic principles that underpin their effectiveness.

Terminals form a crucial component of the NoFloods flood protection system, serving a dual purpose that enhances its functionality:

• Starting or Ending the Flood Barrier: Terminals serve as the initial or concluding points of the Flood Barrier, ensuring a seamless and secure connection to the protected area.
• Air and Water Management: These elements enable controlled inflow and outflow of air and water within the system, contributing to its stability and efficient operation.

Manufactured from aluminum, these terminals boast exceptional resistance to both corrosion and UV rays, ensuring durability even in challenging environmental conditions. When used, the single Terminals are paired and positioned at the ends of the Flood Barrier, effectively enclosing the protected area. The terminal design is optimized for the introduction of water into the dam, and it incorporates aluminum closures of the STORZ type or equivalent, allowing for secure and reliable connections. Furthermore, a rubber protective ring is integrated into the terminal structure, effectively preventing slips and leaks.

The variety of Terminals encompasses three distinct configurations:

• Single Terminal (One unit)
• Double Terminal (Two single units)
• Triple Terminal (Three single units)

By incorporating these resilient and thoughtfully designed Terminals, our flood protection system gains the capacity to initiate, conclude, and regulate the flow of air and water with precision. This ensures the creation of a comprehensive, adaptable, and effective defense against flooding events, bolstering the resilience of vulnerable areas.

Singal Terminal	Twin Terminal	Triple Terminal

The tubes comprise an inner liner and an outer liner, both collaborating to form the tube’s structure. Each liner serves a distinct purpose, collectively providing a balance of characteristics such as flexibility, lightness, exceptional strength, and resistance against tearing. These qualities are crucial for their performance in flood protection, coastal defense, and the temporary containment of wastewater. The total length of the dam is extendable up to 200 meters per section, offering adaptable protection as needed. The tubes are designed to withstand UV exposure up to 150,000 kilolangleys (KLY). To ensure structural uniformity, the tubes are deliberately devoid of connecting devices. The parallel tubes are linked along their length using a simple and efficient mechanism that requires no tools. This design allows for accommodating differences in elevation between each length, contributing to the overall flexibility of the system.

Inner liner

The inner liner’s material is selected to fulfill the role of securely containing liquids over an extended period. This liner must be impermeable to liquids, even when handling substances like wastewater, chemicals, or muddy water. Similar inner liner materials are employed by Environment Solutions for the storage of wastewater and chemicals. Low-density polyethylene (LDPE) is the material of choice for this inner liner due to its suitability for these specific purposes. This material offers a minimal migration rate, ensuring a safe and reliable solution for liquid containment.

Incorporating this meticulous combination of materials into the tubes ensures a flood protection system that excels in flexibility, durability, and effective containment of liquids, making it a standout choice for various applications, ranging from flood defense to managing wastewater.

Migration (mg/dm2)

Method: TS-ENV 1186-1/12

CONDITIONS OF ANALYSIS: 40 degrees Celsius, 10 days

Outer liner

The outer liner of the tubes serves a dual role: reinforcing the overall solution’s strength and providing a protective layer for the inner liner. To fulfill these functions effectively, the outer liner is constructed using Polypropylene (PP), a material chosen for its remarkable attributes. PP contributes significant advantages to the solution, including:

• Enhanced Strength: The outer liner adds an extra layer of robustness to the entire structure, reinforcing its capacity to withstand various stresses and pressures.
• Maximum Flexibility: Despite its high strength, PP offers remarkable flexibility, allowing the flood barrier system to adapt to changing conditions and terrain.
• Low Weight: PP’s lightweight nature contributes to the overall agility and ease of deployment of the flood barrier system.

In the context of flood protection, concerns about migration strength are typically not paramount. For most flood defence applications, a slight degree of migration, such as 0.01% per minute, is generally deemed acceptable. This level of migration doesn’t compromise the standard functionality and efficiency of the Barrier. However, in scenarios involving containment reservoirs or beach booms, migration might indeed be a relevant consideration.

By incorporating the attributes of Polypropylene into the outer liner of the tubes, the flood barrier system gains an optimal balance between strength, protection, flexibility, and weight, thus ensuring its robust performance in safeguarding against floods and other water-related challenges.

Migration (mg/dm2)

Method: TS-ENV 1186-1/12

ANALYSIS CONDITIONS: 40 degrees Celsius, 10 day

Terminals/Junctions

All Terminals and Junctions are meticulously crafted from high-quality aluminum, ensuring exceptional performance and durability. This choice of material is pivotal in guaranteeing the longevity and reliability of these critical components within the flood protection system. Aluminium offers a range of advantages, including:

• Durability: Aluminium exhibits inherent resistance to corrosion and degradation, making it well-suited for prolonged exposure to varying environmental conditions, including moisture.
• Sturdiness: High-quality aluminum contributes to the overall robustness of the Terminals and Junctions, enabling them to effectively withstand the pressures and stresses associated with flood protection and containment activities.
• Lightweight: Despite its strength, aluminum is comparatively lightweight, which is advantageous for ease of transportation, installation, and maneuverability
• Long Lifespan: The combination of durability and corrosion resistance means that these Terminals and Junctions have a projected lifespan of approximately 20 years, ensuring sustained performance and value.

The utilization of high-quality aluminium in crafting Terminals and Junctions underscores our commitment to providing flood protection solutions that are not only effective but also built to endure. This choice of material aligns with our goal of delivering reliable, long-lasting systems capable of withstanding the demands of their operational lifespan

The incorporation of Junctions into the flood protection system introduces exceptional flexibility in determining the length of the Flood Barrier.

The beauty of this design lies in its adaptability – tubes can be provided in sections spanning 10 to 200 meters, and these sections can be interconnected using Junctions. This innovative approach grants you the freedom to customize the length of your barrier as needed. Whether you initiate with a 200-meter configuration and subsequently extend it to 400, 600, 800, or even 1,600 meters and beyond, the use of Junctions ensures a smooth and effective expansion process.

This dynamic system allows for virtually any desired length to be achieved, granting you the capability to tailor your flood protection solution precisely to the unique requirements of your environment.

The weight of the Flood Barrier is directly influenced by key factors, including its length, height, and the number of terminals and junctions incorporated into its configuration. This weight variability is a result of the diverse customization options available to tailor the flood protection system to your specific needs.

For comprehensive details regarding the weight associated with your chosen Flood Barrier design, we provide a comprehensive product catalog. This catalog offers in-depth information about each component, encompassing tubes, terminals, junctions, and additional accessories. By referring to this invaluable resource, you will gain a clear understanding of how the individual elements impact the overall weight of your selected flood protection system. Armed with this knowledge, you can make well-formed decisions that align with the unique requirements of your project.

The configuration of the Mobile NoFloods Flood Barrier upon deployment is visually depicted below, showcasing the utilization of Twin Terminals and Twin Junctions to create the system’s structure.

The longevity of the NoFloods Flood Barrier components is influenced by the materials used and proper maintenance. Here are the expected lifespans and considerations for various parts of the system:

• Terminals and Junctions: Crafted from durable aluminum, these components can endure for approximately 10 to 20 years when they are treated according to recommended instructions, transported, and handled with care.
• Straps: Straps are constructed from stainless steel and aluminum, contributing to their robustness. When subject to proper maintenance and usage, they are also expected to last for around 10 to 20 years.
• PP and PE (Tubes): The recommended shelf life for parts made of PP and PE, such as tubes, is around 5 years when stored correctly. Proper storage conditions involve keeping the components in a dark and dry environment without exposure to UV light. It’s worth noting that some equipment made from PP and PE has been successfully stored for up to 10 years without issues, although guarantees for extended storage of plastic-related products cannot be provided.

In addition, our NoFloods Recycling Program “Go Green” is available for tubes made of PP and PE. This program extends over a 5-year period, offering the option to replace tubes and obtain new ones at a discounted price. Ensuring proper storage of all components is essential to maximizing their lifespan.

By adhering to recommended practices and maintenance guidelines, you can ensure that the Flood Barrier remains effective and functional throughout its intended operational lifespan.

Proper storage is vital to maintaining the condition and effectiveness of the Flood Barrier components. Here are guidelines to ensure appropriate storage:

• Dam Material and Equipment: All components, including dam material and other equipment, should be stored indoors, preferably under a roof. Ensure that the storage area is secure, dry, and devoid of exposure to direct sunlight, maintaining optimal conditions for preserving the integrity of the materials.
• Customized Containers: If the components are delivered in customized containers, these containers should remain secured and unopened for storage. This safeguards the components within their original protective packaging.
• Unpackaged Equipment: Equipment not delivered in containers should also be stored indoors, away from UV light and in a dark and dry environment. Direct sunlight exposure should be avoided to prevent degradation.
• Couplings: Couplings should be stored on pallets, and equipped with protective rubber, clamps, and fittings properly installed. This ensures that the units remain complete and readily operational when needed.
• Machinery and Electrical Equipment: Machinery and electrical components should be stored following the manufacturer’s instructions to ensure their longevity and operational readiness.

By adhering to these storage guidelines, you’ll maintain the condition of the Flood Barrier components, safeguarding their effectiveness and performance over time. Proper storage is an investment in the system’s durability and reliability.

NoFloods water flood barriers come in Basic, Semi-Pro, and Pro models, each tailored for short (5-25m), medium (15-50m), and long-distance flood protection (50-1,000m or more).

1) LONG DISTANCE FLOOD PROTECTION (15 m to 50 m) – NoFloods PRO Flood Barriers

The NoFloods PRO solution offers a superior choice for professional, flexible, and cost-efficient large-scale flood protection, covering distances from 50 meters up to 1,000 meters or more. Each section can be continuously extended by interconnecting special Junctions to create an almost infinite length or prolongation of the flood barrier, perfectly suiting the risk.

The NoFloods PRO barrier can be configured with different Terminals and Junctions, depending on location, distance, water retention height, deployment experience, intended use, and more.

The NoFloods PRO solution can be deployed on all surfaces, including sand, grass, asphalt, and concrete, in various configurations, such as circles, 45-degree turns, and 90-degree turns. Here are some examples:

NoFloods PRO can be delivered in modules ranging from 50 to 200 meters and in two standard heights: 60 cm (with a minimum retention height of 37 cm) and 125 cm (with a minimum retention height of 80 cm).

Specific characteristics of the NoFloods PRO solution:

• Superior for distances exceeding 50 meters
• Carries Terminals and/or Junctions for easy filling with water
• Simple ventilation – release/fill with air
• Easy handling for ground crews
• Compatible with high-volume pumps and can be filled from just one access point
• Adjustable water/air levels on-site at both ends of the barrier
• Long sections up to 200m = faster deployment, low deployment costs AND low price per meter

2) MEDIUM SCALE FLOOD PROTECTION (15 m to 50 m) – NoFloods SEMI-PRO Flood Barriers

The NoFloods SEMI-PRO solution offers professional, flexible, and cost-efficient medium-scale flood protection with Terminals at just one end, hence the name SEMI-PRO. The barrier can be extended with Junctions for longer spans, and Triple configurations are also possible.

NoFloods SEMI-PRO is a great solution recommended for small and medium-scale deployments ranging from 15 to 50 meters, with handling and water filling greatly facilitated due to the NoFloods Terminal or Junction filling points.

NoFloods SEMI-PRO Barriers can be deployed on all surfaces, including sand, grass, asphalt, and concrete, and in various configurations – circles, 45-degree turns, 90-degree turns, etc. Here are some examples:

NoFloods SEMI-PRO Barriers can be delivered in modules ranging from 15 to 50 meters and in two standard heights: 60 cm (with a minimum retention height of 37 cm) and 125 cm (with a minimum retention height of 80 cm).

Specific characteristics of the NoFloods SEMI-PRO solution:

• Recommended for small and/or mid-scale deployments – distances up to 50 meters
• Carries Terminals or Junctions for easy water-filling
• Simple ventilation – release/fill with air
• Easy handling for ground crews
• Compatible with medium-volume pumps and can be filled from just one access point
• Adjustable water/air levels at one end of the barrier

3) SMALL SCALE FLOOD PROTECTION (5 m to 25 m) – NoFloods BASIC Flood Barriers

The NoFloods BASIC solution provides cost-effective flood barriers designed for small-scale deployments. The NoFloods BASIC barrier comes without Terminals and can be used as a supplement to NoFloods PRO and SEMI-PRO barriers when additional protection is needed, for longer deployments, and/or to increase retention height.

The NoFloods BASIC solution is recommended for 5- to 25-meter deployments. The NoFloods BASIC Barrier comes packaged as a roller, making deployment easy: simply unwind it on the ground and fill with water – no site preparation, additional equipment, or permanent installations required.

Small sections of NoFloods BASIC Barriers can be placed anywhere – individually or in continuation of each other with the aid of a skirt as a single long barrier. However, deploying BASIC Barriers is more time-consuming compared to the NoFloods PRO and SEMI-PRO solutions, which we recommend depending on the situation and for longer distances.

NoFloods BASIC Barriers can be delivered in modules ranging from 5 to 25 meters and in two standard heights: 60 cm (with a minimum retention height of 37 cm) and 125 cm (with a minimum retention height of 80 cm).

The NoFloods BASIC solution is suitable for sealing off small streets or between walls where NoFloods Terminals cannot be installed, making it an affordable and effective alternative to traditional sandbags.

NoFloods BASIC Barriers are valuable as “extras” – for reinforcement or in case of unexpected incidents, making PRO or SEMI-PRO Barriers wider or higher, as horizontal or vertical Triple solutions.

Specific characteristics of the NoFloods BASIC solution:

• Cost-effective for small-scale deployments – from 5 to 25 meters
• A good supplement to PRO and SEMI-PRO solutions for additional protection or reinforcement in unexpected incidents
• Well-suited for use in continuation of other barrier solutions or up against a wall.

Environment Solutions ApS has been involved in state-of-the-art flood protection for more than two decades. A large number of live deployment cases demonstrating the capability and competence of the NoFloods Barriers exist, a few select ones described in our Case Book.

The present personnel in the company combined have +25 years of experience as experts in the solution/product and have been actively participating in many truly successful live deployments, including both preventive and curative deployments in cooperation with local or national emergency agencies. Our partnerships are continually strengthened by having regular training sessions as well as providing instruction videos and manuals. Upon request, we can document client satisfaction with the product.

The time and personnel needed for deploying different lengths of the NoFloodsFlood Barrier (PRO 125) are as follows:

• 100 Meters: With a team of 2-4 people, approximately 20-40 minutes are required for deployment, which involves laying out tubes and connecting terminals. Inflating with air takes approximately 5 minutes, and filling with water 20-40 minutes depending on pump capacity. For air and water-filling, only 2 people are needed.
• 200 Meters: Deployment time for 200 meters is similar to 100 meters. An additional 1-2 minutes might be added, as deployment can be done directly from the storage box or hydraulic winch. The process involves laying out tubes and connecting terminals. Inflating with air takes an additional 5 minutes, and filling with water doubles up the amount of time.
• 1,000 Meters: In optimal conditions, deployment of 1000 meters can be accomplished in approximately 4 hours with 6-8 people and the assistance of a vehicle and high-volume pumps. This efficient deployment involves connecting terminals and tubes, inflating with air, and utilizing high-volume pumps for water filling.
• Water-filling example: TwinTube PRO 125 Volume = 2,350 l/m, 235,000 l for 100 meters. Water-filling time at 12,000 l / min = 2,350,000/ 12,000 = 19,6 minutes.

It’s important to note that pre-assembling tubes and terminals in advance, such as in a warehouse, can significantly reduce deployment times. The deployment process can be expedited by having the components pre-connected and ready for deployment.

Ultimately, the deployment time and personnel requirements depend on factors such as the length of the barrier, the level of preparation, wind velocity (above low velocity is assumed), the availability of equipment like pumps, and the experience of the team

Deploying and assembling the NoFloods Flood Barriers during flood conditions is designed to be a straightforward and effectiveprocess. The system’s design ensures simplicity and logic in its deployment, enabling it to be effectively utilized both before and during flooding events.

While the deployment process is generally manageable and intuitive, specific situations during flood conditions might benefit from using the NoFloods Hydraulic Winch. This tool can enhance deployment efficiency, particularly in challenging scenarios. The hydraulic winch can provide additional support during the deployment process, allowing for smoother and more controlled positioning of the Flood Barriers.

In essence, the system’s user-friendly design, coupled with the option to employ the hydraulic winch when needed, ensures that the deployment and assembly of Flood Barriers remain effective and efficient, even in dynamic and demanding flood conditions.

The distinction between preventive and curative deployment of the NoFloods Flood Barrier lies in the timing and purpose of its installation:

• Preventive Deployment: Preventive deployment involves positioning the barrier before flooding occurs, with the aim of safeguarding a specific area or structure. The barrier is set up in anticipation of rising water levels, acting as a proactive defence mechanism against potential flooding. This deployment strategy is effective when there is advanced notice of an impending flood, allowing time for preparations.
• Curative Deployment: Curative deployment takes place during an ongoing flooding event, directly into the water. This method is commonly used to encircle flooded structures or installations, such as substations. The intent is to create a barrier to contain the water and then use appropriate pumps to drain the area enclosed by the barrier. While it is possible to curatively deploy the barrier, this is typically more feasible when dealing with relatively shallow flood depths, allowing machinery and vehicles to access the site.

It’s worth noting that while curative deployment is an option, preventive deployment is generally preferred, assuming there is sufficient lead time for protection measures. This approach is particularly effective when a flood Early Warning System is in place, as it allows for proactive actions to be taken in response to forecasts of flooding. Ultimately, the choice between preventive and curative deployment depends on factors such as the flood conditions, available resources, and the time frame for response.

Deploying the NoFloods Flood Barrier is a straightforward process that can be accomplished by following these 5 simple steps:

Step 1	Step 2	Step 3	Step 4	Step 5

Step 1: Arrival and Site Inspection

Upon arrival at the deployment site, conduct an inspection to assess the suitability and any potential obstacles. The Flood Barriers can be deployed from various sources, including trailers, small trucks, storage bags, deployment boxes, or directly from a hydraulic winch.

Step 2: Deploy the Barrier

Unroll or pull out the Flood Barrier at the desired location where protection is needed. This step involves physically positioning the barrier in the intended area of deployment.

Step 3: Connect Terminals and/or Junctions

For the NoFloods PRO model, connect the Terminals and/or Junctions to the tubes as required. This is a crucial step in establishing the barrier’s structural integrity.

Step 4: Connect Pumps and Fill Tubes

Attach the pumps to the system and begin filling the tubes with water. As the tubes become water-filled, the Flood Barrier takes shape and becomes operational.

Step 5: Emptying and Disassembly

When the need for the Flood Barrier subsides, the disassembly process is as efficient as the deployment. Gradually release the water in a controlled manner and then roll up the tubes for storage. For longer distances, utilizing the NoFloods Hydraulic Winch is recommended to facilitate smooth rolling and efficient disassembly.

By adhering to these 5 straightforward steps, you can effectively deploy, operate, and subsequently disassemble the Flood Barrier, providing quick and reliable flood protection as needed.

Deploying the NoFloods Flood Barrier is designed to be a hassle-free process that requires no special tools or machinery. Here’s what you need to know:

• Simple Setup: The deployment of the Flood Barriers does not necessitate any specialized tools. A small team of individuals can effectively set up the barriers.
• Stabilization Equipment: To ensure the stability of the Flood Barriers, you’ll need a standard air blower for inflating the tubes and water pumps for filling them. Notably, these necessary equipment items, including water pumps and air blowers, are typically included as part of the offer.
• Optional Accessories: Depending on the specifics of your deployment, optional accessories such as trolleys and other tools are available. These accessories can streamline the deployment process and reduce the manpower required.
• Vehicle Deployment: For longer sections, particularly those spanning 100-200 meters or more, direct deployment from a vehicle is a beneficial option. This approach minimizes the manpower required and enhances the efficiency of the deployment process.

In essence, the deployment of the Flood Barrier is intentionally designed to be user-friendly and straightforward, eliminating the need for specialized tools or machinery. With the necessary stabilization equipment included and optional accessories available, you can efficiently set up the barriers with ease.

Before and during the deployment of the NoFloods Flood Barrier, several precautions should be diligently observed to ensure safe and effective installation:

• Site Identification and Measurement: Accurately identify and measure the deployment site where the Flood Barrier will be positioned.
• Ground Conditions: Assess the ground conditions at the deployment site to ensure stability and suitability for the barrier.
• Flood Water Level: Estimate the intended location of the barrier in relation to the expected flood water level. Proper positioning is crucial for effective flood protection.
• Couplings, Clamps, and Fittings: Ensure that couplings, clamps, and fittings are correctly installed according to the instructions provided in the operator’s manual. Proper installation contributes to the barrier’s integrity.
• Terminal Placement: Position the Terminals in a manner that prevents water from flowing behind the deployed barrier. This helps maintain the barrier’s effectiveness.
• Avoid Leaning on Objects: Avoid deploying the barrier leaning against trees, posts, buildings, or other objects that could compromise its stability.
• Avoid Hazards: Steer clear of deploying the barrier over broken glass, sharp objects, stones, high edges, or areas prone to bends, as these can damage the barrier or hinder its function.
• Slippery Grounds: Be cautious on slippery or uneven grounds, as the barrier may slide or become unstable.
• Unstable Grounds: In cases of unstable ground, water pressure may lead to water influx through the ground beneath the barrier. This can compromise the barrier’s effectiveness.
• Channels and Sewers: Be aware that water pressure can push water through ground channels or sewers, causing water to flow up on the dry side of the barrier.

By adhering to these precautions, you ensure that the deployment of the Flood Barrier is conducted safely and effectively, minimizing potential risks and maximizing its performance in flood protection scenarios.

The design of the NoFloods Flood Barriers enables their deployment in diverse locations and for various applications. The barrier’s versatility is evident in its compatibility with a range of ground types:

• Adaptable to Different Surfaces: The Flood Barriers can be deployed in locations and all types of surfaces where sandbags are traditionally used. They exhibit adaptability to varying ground levels, including sidewalks, trails, and uneven surfaces.
• Versatility in Terrain: Whether deployed amidst trees, houses, or other settings, the Flood Barriers can be situated in different terrains. They can be effectively deployed on diverse types of ground, much like sandbags, including areas where sandbags might be used over larger distances.
• Additional Support: If needed, a skirt can be attached to provide supplementary support. This is particularly useful when deploying the barrier on surfaces like stones or sand, offering stability.
• Preventive and Curative Deployment: The Flood Barriers are suitable for both preventive and curative applications. They can be deployed on dry land as a proactive measure or in water during flood events for containment.
• Challenges in Rocky Terrains: While the Flood Barriers are versatile, they might encounter difficulties in rocky terrains characterized by intricate stone geometry and structures with sharp edges or rough shapes. Such terrains might pose challenges to deployment.

Overall, the Flood Barriers are designed to provide adaptable and effective flood protection in various environments, making them a versatile solution for safeguarding against flooding in a wide array of scenarios.

NoFloods Barriers fight water with water – once the flood situation has subsided and the watertubes removed, the landscape and/or infrastructure is quickly restored to how it was prior to the event. No need e.g. to transport truckloads of sand back and forth with inevitable environmental impact.

The NoFloods Flood Barrier is uniquely designed to provide effective flood protection not only before floods but also during flooding events, setting it apart as a versatile solution for extreme weather conditions. Notably:

• Pre-Flood and During Flood Deployment: The Flood Barriers can be deployed both as a proactive measure before a flood occurs and actively during ongoing flood events.
• In-Water Deployment: A distinguishing feature of the Flood Barrier is its ability to be deployed effectively in water during flooding. This sets it apart as a versatile and reliable solution for flood containment even in challenging conditions.
• Curative Deployment: The Flood Barrier has undergone rigorous testing and received approval for curative deployment by Sécurité Civile, France. This endorsement underscores its capability to be deployed during flooding to manage water levels and protect areas at risk.

For more detailed visual guidance, you can refer to our website, where video illustrations showcase the process of deploying the Flood Barrier effectively, especially during flood situations. The ability to deploy the barrier in water positions it as a robust and adaptable solution for addressing floods in various scenarios.

Yes, the NoFloods Flood Barriers can be deployed even in windy conditions.

A watertube barrier in many circumstances IS the mobile barrier of choice in storm or hurricane settings of strong wind, primarily because of the heavy weight of the water-filled barriers, once filled. E.g. our NoFloods TwinTube Pro 125 weighs 2.35 tons per running meter barrier when filled with water, which is an extraordinary transformation from its dry weight of 3.5 kg per running meter!

When faced with windy conditions in the early deployment stages, one can take specific steps to enhance the stability of the deployment:

• Adding Weight: In situations involving wind, it’s advisable to increase the stability of the Flood Barrier deployment by adding weight on top of the tubes. This additional weight counteracts the effects of wind and helps maintain the barrier’s position.
• Water-Filled Fire Hoses: A recommended approach is to place water-filled fire hoses on top of the tubes during the initial deployment steps (steps 1-3). This added weight contributes to stability and prevents the barrier from being easily displaced by strong winds.
• Using a Winch: If a winch is available, it can be employed during the deployment process (as depicted in step 5). By starting the water-filling process and simultaneously unwinding the tubes using the winch, one can establish a stable deployment even when faced with windy conditions.

These measures collectively contribute to ensuring that the Flood Barriers remain effective and steadfast during deployment, even in challenging wind conditions. The flexibility to address various weather scenarios underscores the barrier’s reliability and adaptability.

Deploying the Flood Barrier during flash floods presents certain challenges due to the nature of such events. Here’s what one needs to consider:

• Violent Nature of Flash Floods: Flash floods are characterized by their rapid onset and violent nature. The short lead time before the floodwaters arrive makes the application of traditional barriers, including the Flood Barrier, challenging in such scenarios.
• Arid Areas and Scarce Water: In arid areas where flash floods can occur, the availability of the basic “filling material” (water) required for the barrier may be scarce, difficult to access, or costly to transport. This can hinder the barrier’s deployment effectiveness.
• High Flow Velocities and Sediment Transport: Flash floods often come with high flow velocities and significant quantities of transported sediment. These conditions can pose a risk to barriers made of plastic or synthetic material. Barriers that have been stored under the sun for an extended period might be particularly susceptible to damage.

In essence, while the Flood Barrier offers flood protection solutions, the unique challenges posed by flash floods, including their sudden onset and violent characteristics, might limit its practicality in such scenarios. It’s important to assess the specific conditions of the flash flood-prone area and consider alternative flood management strategies that align with the urgency and severity of the situation.

This is what one needs to do:

Preparation: Ensure that all equipment is prepared and ready for deployment.

Curative Deployment: When dealing with high water levels, follow the prescribed approach for curative deployments. Alternatively, follow the guidelines outlined for cofferdam projects.

FlexWall: Consider using our NoFloods FlexWall as an alternative approach. This barrier has proven its strength when deployed in running water with water flowing toward it.

For deployment directly into water/ curative deployment, no air filling is needed.

When deploying the Flood Barriers directly into a flooded area, water is simply pumped directly into the tubes.

Flood Barriers used as a cofferdam. No air is used for filling.

The NoFloods Flood Barrier is designed to be self-standing and does not require additional anchoring to the ground. Here’s how it works:

• Self-Standing Design: The Flood Barrier is designed to stand on its own without the need for external fixtures or anchoring mechanisms.
• Weight of Water: The principle behind the Flood Barrier’s effectiveness is to “fight water with water.” The barrier operates as a portable gravity dam, where the weight of the water inside the tubes serves a dual purpose: it provides flood protection by acting as a barrier against the floodwater, and it also offers stability by preventing the barrier from sliding or being displaced.

In essence, the Flood Barrier’s self-standing design and its reliance on the weight of the water within the tubes ensure that it remains stable and effective without the need for additional anchoring to the ground. However, if you wish to enhance its anchoring, you can easily do so by attaching ropes to the patented loops on the side of the barrier, enabling you to anchor it to various objects in the terrain or to earth anchors for added security in challenging conditions. This flexibility ensures that the NoFloods Flood Barrier can adapt to a wide range of flood protection scenarios.

No pre-installation is required for the NoFloods Flood Barrier. The equipment is designed to be fully demountable and movable, allowing for easy deployment as needed. This flexibility eliminates the need for any preliminary setup on the deployment site. The barrier’s portable nature ensures that it can be efficiently transported to the desired location and assembled on-site without the necessity for preinstallation.

After the NoFloods Flood Barrier is deployed, monitoring and maintenance are generally not continuous but may be needed periodically. Here’s what you should know:

• Limited Control and Maintenance: Once deployed,the Flood Barrier’s need for monitoring and maintenance is typically limited to periodic checks. Maintenance activities might need to occur once a day or as necessary, depending on the situation.
• Emergency Situations: While regular maintenance is not constant, flooding is often considered a force majeure situation. During flooding, especially as water levels approach the barrier, it’s essential to pay close attention to the situation. Unexpected developments can occur suddenly, demanding prompt action.
• Flood Management: The dynamic nature of flooding situations means that flood management practices are crucial. Being prepared to respond tounexpected changes, ensuring barrier stability, and adjusting deployment as needed are all part of effective flood management.

In summary, while continuous monitoring might not be required, flood management practices should be in place to addressunexpected situations, ensure the stability ofthe Flood Barrier, and respond effectively to changing flood conditions.

The NoFloods Flood Barrier can remain deployed and under load for an extended period. Here are the details:

• Longevity: The barrier’s design allows it to stay deployed for several days without issues. In construction scenarios, it has been tested under load for as long as +90 days during activities. In live flood cases, the barrier has been in contact with waterfor up to 7 dayswithout adverse effects. A UV resistant membrane is recommended for long term deployment.
• Recommended Inspections: Although the barrier is capable of extended deployment, it’s advisable to conduct regular inspections. During a live flood event, inspections should be conducted at least once a day. This ensures that the barrier remains effective and stable, addressing any concerns promptly.
• Monitoring and Warning Systems: To enhance monitoring, video surveillance and other mobile GSM-based warning systems for water levels are recommended. These technologies can provide real-time data and alerts, allowing for proactive management and response during prolonged deployments.

In essence, the NoFloods Flood Barrier’s robust design enables it to be deployed for extended periods, but regular inspections and monitoring are essential to maintain its effectiveness and stability over time.

Yes, the NoFloods Flood Barrier is compatible with other flood defense systems. Here’s how:

• Side-by-Side Placement: The Flood Barrier’s design allows for other flood defense systems to be placed side by side with the Flood Barrier. This means that one can integrate multiple systems within the same deployment area to create a comprehensive flood protection strategy.
• Strapping Together: If necessary, the Flood Barrier’s “eyes” and “handles” can be utilized to strap two different systems together. This offers a practical way to ensure compatibility and enhance the effectiveness of multiple flood defense systems working in tandem.

In summary, the NoFloods Flood Barrier’s flexibility allows it to work alongside other flood defense systems, providing one with the option to combine different solutions to create a more robust and comprehensive approach to flood protection.

Yes, one can connect two NoFloods Flood Barriers without using a Junction. Here’s how:

• System Extension: If one intends to extend the system by connecting two barriers, one can achieve this by placing the two barriers next to each other with their respective Terminals aligned.
• Overlap Sealing: The area of overlap between the two barriers can be sealed using a tarpaulin. This helps ensure a continuous and effective barrier against floodwaters.
• Extension with Another System: Extending with another system is also possible. The tarpaulin is also recommended as visualized below.

This approach allows for easy extension of the flood defense system without requiring a Junction. The tarpaulin provides a practical and effective means of creating a seamless barrier between the connected sections.

Yes, the flexible design of the NoFloods Flood Barrier allows it to be curved and deployed in various directions, including in between or around trees and structures. In general, one can deploy the barrier on the same trail as one can drive with a 4WD vehicle. It is possible to position the Flood Barrier in a way so that the deployment line forms a 90-degree angle in either direction and with a radius of no more than 5 meters.

To create a 90-degree angle with the barrier, one has several options:

• Simple Method: The tubes can be gently directed to form a 90-degree angle. Use the patented loops on the side of the tube. Pull 2-4 loops together, and the tube will start to curve. Bundle the next set of loops, and one will achieve a sharper curve. Continue until one has the desired shape. If desired, one can reinforce it with a membrane afterward to ensure a watertight seal and prevent any potential leakage.

• NoFloods Pro: The NoFloods Pro variant also includes a 90-degree Junction-set to smoothly create a 90-degree angle. We have multiple options

In summary, the NoFloods Flood Barrier’s adaptability makes it possible to configure it at a 90-degree angle in various ways, depending on the specific model and components one has.

Filling the Flood Barrier with water is essential for its effectiveness. While it might seem challenging if there’s no natural water source nearby, here are some considerations:

• Flood Threat Assessment: Before worrying about water source proximity, it’s important to assess whether the location is prone to flooding and if the Flood Barrier is necessary. Most areas susceptible to flooding will likely have some form of water source nearby.
• Water Sources Within Reach: In practice, even if a natural water source like a stream, river, sea, or fire hydrant isn’t immediately adjacent, it’s highly probable that one is within a relatively short distance (1, 2, or 300 meters). Such proximity ensures that one can access water to fill the barrier.
• Single Access Point: One only needs to fill a 100-meter section of the barrier from one access point. Even if you’re extending the barrier to, for example, 800 meters, you can still fill it from the same access point. You benefit from Junction and Terminals where water can flow from one section to the other.
• Dam up with a membrane. Deploy the barrier as normal. Fill with air. Deploy a membrane over the barrier and in front. The membrane will dam up water. You place pumps in front of the membrane/barrier and start filling the tubes.
• Efficient Filling: For larger barriers with multiple tubes (like the triple tube), you can begin by filling the lower two tubes. If additional protection height is required, you can then initiate the filling of the third tube.

In summary, while the barrier’s water-filling requirement might seem challenging at first, the practical availability of water sources near flood-prone areas usually ensures that you can effectively fill the barrier for optimal flood protection.

Filling the NoFloods Flood Barrier is a multi-step process that involves both air and water. Here’s a detailed explanation of the filling procedure:

Air Filling:

• To initiate the filling process, air is introduced into the tubes of the Flood Barrier. This is typically achieved using an air blower, that is connected to the Terminal or Junction of the barrier.
• The introduction of air serves to align the inner liner with the outer liner in each tube of the barrier. This alignment is important for optimal performance.
• Air filling also allows for the final positioning of the barrier, ensuring that it is correctly set up before water filling.

Water Filling:

• After the initial air filling, the Flood Barrier is ready for water filling. Water is sourced from the sea, river, stream, or another suitable water source.
• Water pumps are used to transfer water from the source to the Flood Barrier. These pumps are connected to the Terminal or Junction of the barrier
• The filling process begins from the upstream end of the barrier, which is the side facing the expected direction of floodwater.

The filling process is gradual, allowing the air to be pushed out and relieved by the advancing water towards the upstream end of the barrier. The air must be released gradually in a process that requires monitoring.

In summary, the NoFloods Flood Barrier is filled in two main steps: first with air to align the inner and outer liners for setting up the barrier, and then with water to provide the stability and ground adhesion that ultimately ensures that the barrier is properly installed and prepared to withstand flooding.

The NoFloods Flood Barriers are designed to hold a specific amount of water, influenced by various factors. Here’s an explanation of their water-retaining capacity:

• Recommended Height: The Danish Hydraulic Institute (DHI) has approved a recommended water height range of 0.8 meters up to 1.2 meters for the Flood Barrier Twin Tube 125 (twin and triple tube configurations). Adding a membrane on top of the tubes further adds to their water-retaining capacity.
• Influence of Friction: The recommended head of water is affected by the friction between the Flood Barrier and the surface on which it is deployed. In many cases, the actual height of water retained might exceed the recommended range due to this friction.
• Safety Height: For all types of surfaces, a recommended safety height is set at 0.72% of the installed height. This ensures an adequate safety margin for the barrier’s stability and effectiveness.
• Resistance Principle: The Flood Barrier’s resistance is based on the principle of utilizing water itself as a counterforce against incoming floodwater. The Twin Tube configuration consists of two pipes joined together and filled with water, creating hydraulic pressure against the surface.
• Hydraulic Pressure: The hydraulic pressure applied by the NoFloods Twin Tube Pro 125 filled with water amounts to 2,350 tons per linear meter. This hydraulic pressure contributes to the barrier’s stability.

It’simportant to note that these details are based on findingsfrom The Danish Hydraulic Institute’sreport. Exceeding the recommended head of wateror deploying the NoFloodsFlood Barrier on slippery surfaces might lead to sliding and potential accidents or damages. Adhering to the recommended guidelines helps ensure the barrier’s proper performance and safety.

The hydraulic stability assessment of the NoFloods Water tubes has been carried out with a retention height from 0m to 1.0 m. We refer to the following relationship between the required friction angle and the height of retained water for recommended retention height.

Relationship between required friction angle and height of retained water

Another way of presenting the results is by determining the safety factor for a given situation. Note that a safety factor below 1 describes an unstable situation and that the higher the safety factor, the higher the safety. The figure below presents the safety factor for four assumed friction angles, namely 20, 25, 30, and 35, which cover the relevant range for the interface friction between PVC and sand.

Safety factor for typical friction angles

As an example, in the case of a friction angle of 25 the safety factor is 1.4 for a height of retained water equal to 0.9m and 1.0 for 1.0m. If the friction angle is higher, e.g., 30, the safety factor is always higher than 1, and the barrier is thus stable in all cases.

In summary, the relationship between the recommended friction angle, safety factor, and height of retained water is crucial in assessing the stability of the Flood Barriers. Higher safety factors and appropriate friction angles contribute to the barrier’s overall stability and safety in various flood scenarios.

The NoFloods Barrier is designed with considerations to minimize the potential for leakage. Here’s an explanation of its leakage characteristics:

• Weight and Friction: The weight of the Flood Barrier, combined with the friction between the barrier and the surface on which it is deployed, contributes to its ability to resist leakage. These factors help maintain the stability of the barrier and minimize the potential for water to seep through.
• Low Leakage Rate: The Flood Barrier has been rigorously tested to assess its leakage rate. Test results for the TwinTube 125 have demonstrated that the barrier exhibits a very low leakage rate below 4.6 Liters per meter per hour.
• Effective Design: The Flood Barrier’s design aims to ensure that water is effectively contained within the barrier, providing efficient flood protection. The double tubes, along with the principles of hydraulic pressure, contribute to its capacity to resist leakage.­­­­­­­­

In summary, the Flood Barrier is constructed and tested to minimize the risk of leakage. Its weight, friction, and design attributes work in conjunction to provide effective flood protection and containment of water, making it a reliable solution for flood management.

The behaviour of the NoFloods Flood Barrier in the presence of waves is different from its response in still water conditions. Here’s an explanation of how waves can affect the barrier:

• Variable Forces: When subjected to wave action, the forces acting on the Flood Barrier become dynamic and vary in both time and space. Unlike the constant forces exerted by still water, waves create changing and unpredictable forces on the barrier.
• Dynamic Motion: Significant wave action can lead to dynamic and oscillating movements of the barrier. This motion can contribute to local sliding of the barrier due to the varying forces exerted by the waves.
• Overtopping Risk: Waves can also result in overtopping of the barrier, where water from the waves spills over the top of the barrier. Minor overtopping might not pose a significant issue, but consistent and substantial overtopping can impact the barrier’s stability over time. Adding a membrane will keep the barrier stable during in case of overtopping.
• Mitigation Measures: To counter the effects of waves, especially significant wave action, precautions can be taken. These might include adding a third barrier behind the primary one or placing an additional tube on top of the barrier, creating a triple tube configuration. These measures help increase the safety height and prevent overtopping.
• Enhancing Stability: By adding extra barriers or tubes, the barrier’s stability against wave-induced forces and overtopping can be improved. These precautions provide added protection and ensure the barrier’s effectiveness even in the presence of challenging wave conditions.

In summary, the response of the NoFloods Flood Barrier to waves involves dynamic forces, potential oscillating motion, and the risk of overtopping. Appropriate precautions, such as adding supplementary barriers or tubes, can enhance the barrier’s stability and performance in wave-prone environments.

Video #1 Inflatable Flood Barrier – Storm Surge Barrier

In the scenario where the water level exceeds the barrier’s capacity, several consequences can arise. Here’s what can happen and how precautions can be taken:

• Increased Seepage: If the water level surpasses the barrier’s designed capacity, there might be an increase in seepage.
• Overtopping: Water overtopping occurs when the water level rises above the top of the barrier, causing water to spill over the barrier’s edges.
• Risk of Sliding: In situations of water overload, there’s a potential risk of the barrier sliding or shifting slightly, particularly if the equilibrium between water pressure and barrier stability is disrupted.

It’s important to note that the barrier is designed with safety considerations in mind. Even in cases of overtopping or water exceeding the barrier’s capacity, the barrier will not suddenly collapse and endanger people or critical infrastructure. Only if water overflows and continues to fill up on the other side of the barrier the equilibrium will eventually be affected, and the barrier can in the worst case slowly slide a little.

To address potential water overload scenarios, precautions can be implemented. If the water level rises significantly, several measures can be taken to enhance the barrier’s stability and mitigate the risks:

• Extra Tubes: Adding another Flood Barrier behind or on top of the existing tubes can provide extra support and weight to counteract the force of the water.
• Sandbags: Sandbags can be strategically placed on top (1) of the barrier to add weight and prevent overtopping. Additionally, sandbags or bigbags can be positioned behind the barrier to offer additional support (2).

In summary, while water overload can lead to increased seepage, overtopping, and risk of sliding, the Flood Barrier is designed with safety and stability in mind. Precautionary measures such as adding extra tubes or sandbags can enhance the barrier’s performance and provide a safeguard against potential challenges caused by water exceeding its designed capacity.

Many people still use sandbags to combat serious flooding, but the simple calculation below illustrates the superior cost/benefit ratio of the NoFloods system – challenging the rationale behind the sandbag tradition.

While sandbags have been a traditional method for flood protection, the Flood Barrier system offers significant advantages in terms of cost-effectiveness and efficiency. Here’s a comparison that highlights the benefits of the Flood Barrier system over sandbags:

Cost/Benefit Ratio:

• Flood Barriers: The Flood Barrier system provides a superior cost/benefit ratio compared to sandbags. It requires fewer personnel and less time to set up compared to filling and stacking sandbags. While the initial investment in Flood Barriers might be higher, the long-term savings in labour, time, and effectiveness make it a more economically viable solution.
• Sandbags: Using sandbags can be physically demanding, labour-intensive, and time-consuming. The need for a large workforce to fill, transport, and stack sandbags adds to the costs. It also requires proper techniques to ensure stability and effectiveness. Additionally, sandbags are often single-use items and require proper disposal after use.

Reusability and Storage:

• Flood Barriers: The Flood Barrier system is reusable and can be easily stored when not in use. It doesn’t deteriorate after exposure to water, making it a long-lasting investment.
• Sandbags: Sandbags are generally single-use items and may not hold up well after exposure to water. They can become waterlogged and less effective over time.

Overall Effectiveness:

• Flood Barriers: The Flood Barrier system provides consistent flood protection with its stable structure, even water distribution, and high resistance to sliding. Its modular design allows for customization to suit various flood scenarios.
• Sandbags: Sandbags’ effectiveness can vary based on factors such as proper filling, stacking, and placement. They might not provide reliable protection, especially during severe flooding.

In summary, while sandbags have been a traditional approach to flood protection, the NoFloods Flood Barrier system offers a more efficient, cost-effective, and reliable solution. Its advantages in terms of ease of deployment, cost savings, reusability, and overall effectiveness challenge the rationale behind relying solely on sandbags for flood protection.

NoFloods Twin Tube PRO 125 vs. sandbags – protective height 80 cm:

1 m Flood Barrier vs. 1 m sandbags		NoFloods 1	Sandbags 2
	Cost:	65 - 150 € + clean-up/ removal 3	586 € + clean-up/ removal 3

In short – the Flood Barrier:

• Fights water with water – the threat of water used as a resource
• can be used again and again, sandbags are typically single-use – total costs decrease dramatically over time
• uses only 0.5% of resources normally used – 4 men can lay out 1 km NoFloods in 4 hours, requiring 2,000 men to do the same with sandbags

¹ Price per meter based on purchase price. Subscription is also possible, please see note 4. Price calculated as average per meter including tubes and Junctions, the interval reflecting different scenarios. The Flood Barrier usually requires only 0.5% of the resources necessary for laying 1,000 m sandbags – 4 men can lay out 1,000 m NoFloods in 4 hours. Calculation: 1 m NoFloods tubes: 0.03 deployment-hours / 53 € * 1,000 meters.

² Calculation for the laying out of sandbags: 142 pcs. bags * 0,53€ + 6.9 hours * 53 € + 2.5 m3 of gravel * 26 € + 0.25 a lorry in 322 € / hour (+Buckets, plastic etc.).

³ Disposal costs not included. Removing Flood Barriers is estimated at 0.7% of the cost of removing sandbags. Sandbags are typically single-use – NoFloods Terminals/Junctions can be reused again and again, and damaged tubes recycled.

⁴ The NoFloods Resilience Centre (NFRC) offers possibilities for subscription-based access to the material. Purchasing the material, although advantageous, is not strictly necessary.

The quality of NoFloods Flood Barriers is rigorously assured through a comprehensive system of manufacturing standards, certifications, feedback mechanisms, and continuous improvement processes. Here are the key aspects of the quality assurance process:

Manufacturing Standards:

• The Flood Barriers are manufactured according to the “ES Production Quality System, 2011,” which ensures reliability and high quality in production processes.
• Subcontractors supplying components for the Flood Barriers adhere to the same quality standards.

ISO Certification:

• The company is certified according to ISO 9001:2015 by the International Standardization Organization. This certification demonstrates the company’s commitment to continuous improvement and superior performance in all aspects of its business operations.
• Major suppliers of Environment Solutions also hold ISO certification, ensuring quality throughout the supply chain.

Quality Monitoring and Improvement:

• Environment Solutions systematically monitors quality through various mechanisms, including customer feedback, self-assessment, management reviews, and annual quality assessments.
• Key Performance Indicators (KPIs) and quality targets are defined and measured regularly, with corrective actions implemented when targets are not met.
• The management team conducts annual reviews to analyse performance, make adjustments, and ensure alignment with the quality policy.

Employee training:

• Comprehensive training programs are provided to employees to ensure adherence to methods, procedures, and Standard Operating Procedures (SOPs).
• Training includes updates on regulations, rules, and processes to keep employees informed and up to date.

CE Certification:

• The Flood Barrier solution carries the CE (Certificate of Conformity), indicating compliance with safety and health requirements to ensure the well-being of users.

Instruction and Maintenance Manual:

• All handling procedures for the Flood Barriers are meticulously described in the Instruction and Maintenance Manual, which must be readily available during the handling of the barriers.

Training and Customer Support:

• Training for customers is offered and strongly recommended. This training, combined with the guidelines in the Instruction and Maintenance Manual, ensures safe usage and successful flood protection.

In summary, the quality assurance process for NoFloods Flood Barriers involves adherence to manufacturing standards, ISO certification, continuous monitoring and improvement, employee training, CE certification, comprehensive documentation, and customer training. These measures collectively ensure the reliability, effectiveness, and safety of the Flood Barrier solution.

Assessment

We refer to the description of the technical capacity for protection heights for NoFloods Barriers. Also, we refer to the hydraulic assessment report by DHI for water-filled tubes used as flood barriers.

Further reports are available from Vituki, Hungary as well as accreditations from among others Sécurité Civile, France, and Manila Disaster Risk Reduction and Management, Philippines. Please see the statements below.

	Saint Florence Statuette, POLAND Environment Solutions received The Saint Florence Statuette at an awarding celebration dinner. The award was given for emerging assistance during flooding in Poland.
	Vituki Certification, HUNGARY "VITUKI" Hungarian Water Resources Research Institute Kht. & “VITUKI” Institute for Environmental Protection and Water Management International Affairs has tested and approved the material used for the Flood Barrier System.
DHI Hydraulic Assessment Report Danish Hydraulic Institute (DHI), one of the World’s leading independent institutions within water technologies, has completed a thorough test of the technical construction and effect of the Flood Barrier System. All statements of the capabilities of the Flood Barrier System are based on this technical report.
	Securité Civile, FRANCE A Satisfaction certificate has been issued from Sécurité Civile, France after 6 successful deployments during 2014.
	NDRRM accreditation, PHILIPPINES Successful evaluation report has been issued by Manila Disaster Risk Reduction and Management. The NoFloods Barriers have further passed evaluation by the Philippine National Disaster Risk Reduction and Management council

As a company, we base our solution on our extensive knowledge of flood protection and water-related projects. Having deployed our barriers more than 200 times in challenging conditions and worked ‘shoulder to shoulder’ with emergency agencies from multiple countries in all kinds of weather conditions—storms, snow, freezing temperatures, rain, and extreme heat—we have been able to continuously improve our flood barriers for the benefit of our customers.

We have strong live cases from storms and many countries all over the world. Below, you will explore selected deployments. For more recent cases, please visit our website, where we have listed photos and videos.

Denmark 2015. Storm surge.

The NoFloods TwinTube 125 PRO was deployed on a very wet, marshy surface but due to its light weight before deployment, it was possible to deploy 1 km of the barrier. The barrier successfully held back approximately 0.9 m to 1.0 m of water and remained deployed for 4 days.

Denmark 2015 – deployment on swampy surface

France 2014:

The NoFloods TwinTube 125 PRO was successfully deployed in water (curative deployment). After deployment, the water was pumped back to the “right” side of the road.

France 2014 – Deployment on asphalt after dike breach

Hungary 2013:

The NoFloods TwinTube 125 PRO was deployed on a combination of gravel, grass, and asphalt. The barrier successfully held back 0.92 m of water and remained deployed for 7 days protecting a large gas facility.

Hungary 2013 – deployment on mixed terrain

Upon request, we can provide further live case examples documenting the barriers’ efficiency and stability.

No, we generally do not recommend additional cleaning before packing the tube. Simply follow the deployment and barrier emptying instructions, and you’ll be prepared for the next event. It’s important to focus on water filling, where strainers/filters on the water pump will ensure you fill the barrier with clean water, whether it’s fresh or saltwater.

However, if you still wish to clean it, you can inject a small amount of water at one end. As you lift the empty flood barrier with the winch for folding and storage, this water will wash the remaining part and eventually exit from the other end.”

The NoFloods Barriers can be used as a mobile reservoir for water/liquid storage inside the tubes and/or in the reservoir created by a full-circle deployment of the tubes. E.g. 400m tubes deployed in this way create a 10,000 m3 reservoir. The inner liner can be made of food-grade material, enabling storage of drinking water inside the tubes, and the membrane used to create the outside reservoir likewise.

Two NoFloods Accessories are available for securing easy and safe public passageways when the mobile barrier is deployed:

• The NoFloods Ladder facilitates crossing the NoFloods Barrier during flooding.
• The NoFloods Floating Dock makes it possible to cross the NoFloods Barrier during severe flooding, where boats are the only means of transportation.

Taking advantage of the new watertube technology, it is possible to use NoFloods Barriers to create a temporary dam for securing a dry working area within an existing water body, such as a lake, river, or sea.

This innovative approach is environmentally friendly and, in turn, helps you save time and financial resources on manpower and materials.

The flood barriers can be easily deployed in water by a small team, and the work area can then be pumped dry afterward.

In a running stream with structures undergoing repairs, the flood barriers can be combined with a NoFloods FlexWall Barrier to create a bypass solution. The FlexWall Barrier blocks the stream, and the water current is redirected inside the bypass tubes, which are tailored to the length of the restoration or construction site.

The Barrier is typically delivered in high-quality transport and deployment boxes made of aluminum or laminated plywood. These boxes are designed for easy handling with forklifts and are actively used during deployment.

To prevent damage and UV exposure, it is advisable to store and transport the barrier in the box until its final use. The barrier can be deployed directly from the box.

The couplings (Terminals and Junctions) are usually packed and delivered on pallets or platforms. To avoid damage, it is recommended to store and transport the couplings on the pallets until their final use.

Accessories are transported in the containers they were originally provided in. If accessories are not secured in containers, they should be transported according to the manufacturer’s instructions.”

Transporting the NoFloods Flood Barrier is straightforward and flexible, with minimal requirements.

Because the barriers are lightweight, they can be easily and flexibly transported from one location to another using trailers, trucks, trolleys, and other suitable means. In some cases, you can even manually pull the tubes to locations that may be inaccessible by regular vehicles.

A standard 20-foot ISO container can accommodate approximately 800 meters of NoFloods TwinTube 125 Flood Barrier. However, please note that specific requirements for Terminals, Junctions, and other accessories may affect the storage capacity.

Custom containers are available upon request. Please be inspired by this case

Best Solution for Storage and Transport of Flood Barriers

Yes, packing illustrations are available. Here are some selected examples:

Storage and eployment Box: These boxes are designed for optimal and easy deployment and storage of tubes, pumps, and accessories.	800 meters of Flood Barriers: This is for the TwinTube Pro Edition with Terminals and Junctions, packed in a 20-foot container.	Trailer Combination: This setup combines a trailer with 2 Flood Barriers and NoFloods Basic barriers, including pumps, fittings, and more.

Efficient storage and transport of the NoFloods Barriers are optimized to be in effect one and the same thing.

The NoFloods Barrier does not occupy much warehouse space. The storage options are optimized with sturdy, stackable boxes – minimizing required warehouse space.

The Deployment and Storage boxes included in the offer are made of coated plywood, which can be stacked on top of each other with forklifts or the like as shown in the photo.

The boxes can be brought quickly to the deployment site, and the tubes rolled on a drum, or other conceivable combination. Other things or equipment, e.g. Terminals or Junctions can be put on top to save space in the warehouse.

An alternative possibility could be to store/transport the equipment on trailers, here in the photo our NoFloods Barriers with Terminals.

Yes, pumps are required to fill the barriers, but it’s not mandatory to purchase them separately. The Terminals come equipped with Storz couplings, which can be adapted to any standard system used by the deployment team, Fire Brigade, or other first responders. While you can use any pump to fill the barriers, it is recommended to have a pump capacity of at least 100 m3/hour per 100 meters, whether you use one or several pumps. High-volume pumps with a capacity of up to 18-40,000 Liters per minute (18-40 m3 per minute) can also be used. If needed, pumps and all associated equipment (suction hose, fire hose, etc.) are available in the “Toolbox” offered.

Powerful high-volume pumps combined with top-leading

Yes, the pumps we offer can operate effectively in dirty water, even when it contains leaves, rocks, and mud. Since floodwater often carries sediment and debris, it’s recommended to fit the upstream end of the suction hose with a mesh to prevent debris from entering the pump system. It’s also advisable to choose a water pumping point with minimal mud and solid particle concentration. Furthermore, using 1-2 filters, depending on the location, is recommended.

The weight of the pumps varies depending on the model and capacity:

• Standard pumps in our toolbox weigh 50 kg with a capacity of 1500 l/min.
• Diesel pumps weigh 67 kg with the same 1500 l/min capacity.

For pumps weighing over 75 kg, it is advisable to have assistance from at least four people when lifting them from a truck to the ground. High-volume pumps, such as those from Hytrans, are typically delivered directly on trailers or in containers.

The pumps can be provided to run on either diesel or gasoline. Please be aware that diesel pumps will have additional weight compared to gasoline pumps.

Smaller pumps, manageable by two people, typically offer a runtime of up to 3-4 hours when powered by diesel. To extend this operational duration, you can attach an extra diesel tank to the pump, effectively doubling the runtime from 3 to 6 hours.

High-volume pumps come equipped with larger tanks but are not intended for manual lifting. It’s crucial to emphasize that all pumps, regardless of their capacity or fuel type, should be continuously monitored during operation.

Maintenance is primarily required during redeployment. In addition to that, we recommend a simple check or maintenance once a year. For machinery and electrical equipment, it’s crucial to follow the manufacturer’s manuals. Before the operation, all machinery and electrical equipment should be tested, and you should ensure that the generator start battery is charged and the generator is refuelled.

Terminals and Junctions are constructed from robust aluminium materials. The tubes are made up of a woven and robust outer liner (not sewn together, a solution compromising strength and durability), and a water-resistant and flexible inner liner, that combine to a sturdy and durable watertube flood barrier, that is adaptable to normal obstructions.

Minor repairs can be made on-site while the barrier is deployed. If you encounter a hole in the tube, you can repair it using a clam-seal. Alternatively, you can add more water to the barrier with a small pump to address minor damage. Tutorial videos for these repairs are available online.

Environment Solutions offers a recycling program for used or disposed tubes. This program not only provides a financial incentive but is also environmentally friendly.

We always keep important spare parts in stock, and these can be sent express for instant delivery. However, the 3-4 critical spare parts are included in the toolbox. A full catalog is available, listing the most important spare parts and other accessories.

A maintenance contract is not mandatory but can be provided upon request. Costs per visit need to be agreed upon.

The product comes standard with a 2-year warranty from the date of purchase. Any faulty parts or malfunctions resulting from normal use will be repaired or replaced at no charge during this warranty period. However, if malfunctions are caused by user carelessness, inadequate maintenance, or natural disasters, then repair and replacement services will be available only for a fee, regardless of the warranty period.

User manuals are available in both Danish and English. Additionally, user manuals in Danish and English are provided for all additional accessories, such as the hydraulic winch and pumps.

Yes, a rental service is available. Prices and further information can be obtained upon request.

Yes, we provide a comprehensive 3-level training program. We also offer yearly training courses in either system maintenance or to refresh the theory and practice.

Absolutely, we offer technical support for the duration of the contract. We are here to assist you with any technical questions or issues that may arise.

Yes, technical support is available. We recommend developing a support agreement between the parties to ensure that on-site assistance can be provided in case challenging conditions arise during the use of the barrier. This agreement will help ensure a swift and effective response to any technical issues that may occur.

The NoFloods Solutions and equipment are designed with security in mind. When not in use, they are delivered in special storage and deployment boxes (except for the hydraulic winch), which minimizes the risk of theft and vandalism when stored according to the Instruction and Maintenance Manual.

Terminals can be locked through the inlets. A chain can go through the inlet, allowing you to connect all Terminals together or secure them to a fixed item at the warehouse or another location.

When in use, the barrier’s size, weight, materials, and design, combined with the flooding situation, make theft and vandalism highly unlikely. While theoretically possible, the barrier’s design and materials are intended to keep it stable and secure, allowing time for repair or replacement of the tubes in case of damage. For general safety reasons, keeping deployed barriers under constant surveillance is always a good and recommended idea, which again eliminates the threat of theft and vandalism.

Operators must always consider the potential risk of accidents and prioritize their own safety as well as the safety of others.

For deployment in fast-flowing water, it is highly recommended to use the hydraulic winch. This method involves filling the barriers while gradually deploying them using the winch. The winch can be utilized both for deployment and for winching up the tubes afterward. By following this approach, no individuals should come into physical contact with fast-flowing water. It’s crucial not to underestimate the power and force of water. While you can work with water, you cannot completely control it.

Exercise extreme caution when working with electrical equipment and take all necessary precautions to mitigate electrical risks.

We offer a 1–2-day training session for all customers to ensure the proper use of the barriers according to the instructions in the user manual. This training includes both theoretical aspects of flood protection and practical guidance for using our barriers. When these instructions are followed, safety is greatly enhanced.

During the handling and deployment of Flood Barriers, the following general safety precautions must always be observed:

• Adhere to all instructions and local safety regulations.
• Wear appropriate safety equipment, including a helmet, life jacket, safety shoes, gloves, etc.
• Do not walk under hanging loads.
• Ensure equipment is stable and cannot topple or fall, causing harm to individuals or damage to equipment.
• Practice correct lifting and handling techniques.
• Verify that lifting gear, tools, and equipment are in good working condition.
• Utilize equipment specifically designed for the intended purpose only.
• Do not underestimate the risks to life and health when working with water that is or may be contaminated.
• Take precautions to prevent cutting and squeezing injuries.
• Ensure that first aid equipment is readily available.
• Maintain a safe distance from the Terminals.

The NoFloods Flood Barrier solution is CE (certificate of conformity) certified, demonstrating compliance with all safety and health requirements to ensure the well-being of users. Detailed handling procedures are provided in the Instruction and Maintenance Manual, which should always be easily accessible when working with Flood Barriers.

Furthermore, we strongly recommend training for all customers. This training, in conjunction with the guidelines outlined in the Instruction and Maintenance Manual, promotes safe usage and effective flood protection. The necessary Personal Protective Equipment (PPE) and safety procedures related to handling and deploying Flood Barriers are thoroughly explained in the manual. All staff, agents, and suppliers are familiar with and trained in these safety measures, which meet the requirements set by the Environment Agency as described in section 3.

No, the NoFloods Flood Barrier does not emit any hazardous substances, whether during storage, use or when ultimately scrapped.

Yes, all materials used are sourced from Europe. The tubes are constructed from PE (polyethylene) and PP (polypropylene), which facilitates material recycling. In the event of disposal, the tubes can be incinerated with only CO2 emissions resulting. By participating in the recycling program, CO2 emissions can be further reduced to less than 0.5%.

The utilization of Aluminium for our Terminals and Junctions contributes to the long lifespan of our solution. Aluminium can also be recycled if there are unexpected damages or if the decision is made to retire the solution after 20 years, ensuring sustainable material usage.

The use and deployment of the solution are environmentally friendly and demonstrate low CO2 emissions compared to other solutions (e.g., sandbags have a large impact on the environment due to the transport and handling of sand to and from the deployment site).