Flexible Firewater Tanks

Flexible Firewater Tanks: Advanced Fire Protection with up to 2 million liters capacity. Prepare for the unexpected during firefighting. Rely on foldable tank solutions by Loeschwasserkissen.de.

Our foldable fire-water tanks and flexible fire-water cisterns provide a cost-effective alternative to underground fire-water tanks. The underground, frost-proof extraction point ensures reliable water access all year round – even in winter and under extreme temperature conditions.

Ideal for municipalities, industrial facilities, and agricultural operations, these systems offer secure fire protection wherever a permanent water supply is not available.

Alternatively, our mobile fire-water cisterns are available for purchase – perfect for temporary construction sites, forest fire protection, or as flexible fire-water reserves.

Typical tank sizes include 30 m³, 50 m³, 100 m³, 150 m³, and 200 m³, with large-capacity fire-water cushions up to 2,000 m³ also available. If required several tanks can be connected by pipes to form an even larger storage tank farm. Designed for efficient fire suppression in both emergency and preventive scenarios, these tanks are a versatile, eco-friendly solution for industrial, commercial, and residential environments. You can use the mobile and flexible tanks to strategically forward position firewater in ciritical or remote locations, e. g. to fight wildfires.

Strengthening a Hydrant Network with Flexible Fire Water Tanks

Flexible firewater tanks can play a pivotal role in bolstering the performance of a hydrant network, particularly in areas where the network is underpowered or where increased water pressure is required for effective fire suppression. See e.g. Los Angeles Times: Fire hydrants ran dry as Pacific Palisades burned. L.A. city officials blame ‘tremendous demand’

Below is an explanation of how these tanks can address such challenges:

Use flexible Tanks to compensate for Insufficient Water Supply

Hydrant networks in older or rural areas may have limited water availability due to small pipe diameters, low reservoir capacities, or inconsistent municipal water supplies. Flexible water tanks can act as auxiliary water reservoirs, strategically positioned to provide additional capacity where the hydrant system falls short.

• Tactical Placement: Tanks are installed near key hydrant points or critical fire-risk zones.
• Quick Deployment: Tanks can be filled in advance from municipal supplies during low-demand periods or from alternative sources like water tankers.
• Increased Availability: During firefighting, these tanks ensure a steady supply of water, reducing the risk of hydrant depletion.

Boosting Water Pressure in Low-Pressure Zones

A common issue with aging or overloaded hydrant networks is low water pressure, which can hinder effective firefighting operations. Flexible water tanks can integrate with booster pump systems to address this problem.

• Connection to Hydrant Line: Flexible tanks are connected to the hydrant network using compatible fittings.
• Booster Pump Integration: A high-performance booster pump is installed to draw water from the tank and inject it into the hydrant line at a higher pressure.
• Enhanced Performance: This setup ensures adequate water pressure, even in areas far from the main supply or at higher elevations.

Temporary Network Expansion

During maintenance or in areas with rapidly expanding infrastructure, hydrant networks may need temporary reinforcement. Flexible firewater or drinking water tanks offer a quick and cost-effective solution to extend the network’s capabilities.

• Mobile Support: Tanks can be transported to locations where temporary fire protection is required.
• Seamless Integration: With modular designs and standard fittings, they can connect to existing hydrants or temporary pipelines, supporting operations without extensive infrastructure upgrades.

Advanced Features of our Foldable Firewater Tanks

• Lightweight, Compact Design:
  Made from high-strength, lightweight materials, our tanks are easy to transport, deploy, and store. The flexible design allows for quick setup in confined or hard-to-access spaces, making them an invaluable resource for emergency response teams.
• High-Performance Materials:
  Constructed from durable, tear-resistant fabrics with reinforced seams, the flexible firewater tanks are built to withstand high pressures and extreme conditions. Their resistance to UV rays, chemicals, and weather variations ensures longevity and reliability. With proper care they can last 20 years or more.
• Efficient Water Retention and Release:
  The tanks are designed to hold significant volumes of extinguishing water and release it with precision, ensuring targeted fire suppression with minimal water wastage. Their flexibility allows them to adapt to uneven surfaces, ensuring stable positioning.
• Reusable and Easy to Maintain:
  The robust materials used in our tanks ensure they can be reused multiple times with proper maintenance. Almost no maintenance required.
• Cost-Effectiveness: Avoid expensive upgrades to hydrant infrastructure by supplementing with flexible firewater tanks. Cheaper than fixed tanks.

Range of Sizes for Every Requirement from 1000 liters to 2 million liters

Our mobile and flexible firewater tanks are available in a wide variety of sizes to suit specific needs, e. g.:

Capacity (m³)	Liters	Length (m)	Width (m)	Height (m)
1 m³	1,000 l	2.47	1.48	0.50
5 m³	5,000 l	3.55	2.96	0.75
10 m³	10,000 l	5.83	2.96	0.90
15 m³	15,000 l	4.77	4.44	1.10
20 m³	20,000 l	5.83	4.44	1.20
25 m³	25,000 l	6.63	4.44	1.30
30 m³	30,000 l	7.95	4.44	1.30
40 m³	40,000 l	8.53	5.44	1.30
50 m³	50,000 l	8.53	5.92	1.45
70 m³	70,000 l	9.22	7.40	1.50
100 m³	100,000 l	9.83	8.88	1.60
120 m³	120,000 l	11.70	8.88	1.60
150 m³	150,000 l	14.10	8.88	1.60
200 m³	200,000 l	15.59	10.36	1.60
250 m³	250,000 l	16.66	11.84	1.60
300 m³	300,000 l	17.47	13.32	1.60
400 m³	400,000 l	20.50	14.80	1.60
500 m³	500,000 l	22.94	16.28	1.60
600 m³	600,000 l	24.93	17.76	1.60
700 m³	700,000 l	26.60	19.24	1.60
750 m³	750,000 l	28.41	19.24	1.60
800 m³	800,000 l	30.22	19.24	1.60
900 m³	900,000 l	31.36	20.72	1.60
1,000 m³	1,000,000 l	34.70	20.72	1.60
2,000 m³	2,000,000 l	39.23	35.52	1.60

Typical Areas of Application

• Industrial and Commercial Use:
  Ensure compliance with fire safety regulations in factories, workshops, warehouses, and construction sites. The tanks can serve as temporary water reservoirs for fire suppression systems or emergency situations.
• Residential Fire Safety:
  Enhance home fire preparedness by having an accessible water source for immediate fire containment.
• Emergency Response Teams:
  Designed for rapid deployment, these tanks provide emergency crews with an effective and portable water source during firefighting operations.
• Infrastructure and Asset Protection:
  Safeguard sensitive equipment, critical infrastructure, and valuable assets from fire damage by positioning tanks strategically in high-risk areas.

Why Choose Loeschwasserkissen.de?

At Loeschwasserkissen.de, we combine cutting-edge technology with extensive industry expertise to deliver products that meet your exacting fire safety needs. Our flexible firewater tanks are rigorously tested for quality, performance, and durability, ensuring you receive a product that exceeds expectations.

Our flexible tanks are used in many countries. They can work between -30 °C and +70 °C. We export our
folding tanks globally.

In addition we also offer flexible storage tanks for contaminated firewater to protect the environment.

Invest in advanced fire safety solutions today. Explore our full range of flexible firewater tanks at Loeschwasserkissen.de and protect your property, assets, and people with reliable, efficient, and eco-friendly fire protection systems.

Prepare for the unexpected during firefighting. Rely on flexible tank solutions by Loeschwasserkissen.de.

Frequently Asked Questions (FAQs) – Flexible Fire-Water Tanks

1. What is a foldable fire-water tank (also called fire-water cushion)?
A foldable fire-water tank, also known as a foldable fire-water cistern or fire-water cushion, is a collapsible storage container made of durable fabric. It is designed to store large volumes of water for firefighting purposes, particularly in areas without a fixed or sufficient water supply.

2. What types of water can be stored in the tank?
✔ Suitable: potable (tap) water, rainwater, and freshly drawn well water without sediment.
✖ Not suitable: sewage, heavily contaminated water, water containing oil, chemicals, solvents, or saltwater. For contaminated fire-water after firefighting, special tanks are recommended.

3. What other applications do flexible tanks have beyond firefighting?
Flexible tanks can also be used to store various liquids such as:

• Wastewater, drilling sludge, or manure.
• Liquid fertilisers for odour-reduced storage.
• Hydrocarbons such as diesel, heating oil, or kerosene.
• Rainwater or potable water (with appropriate treatment).

4. What sizes are available?
Flexible fire-water tanks are available from around 1 m³ (1,000 litres) up to 2,000 m³ (2 million litres). Larger capacity needs can be met by connecting multiple tanks in parallel.

5. How is the tank filled with water?
Filling methods include:

• Using a hose connected to a hydrant, water tanker, or open water source.
• Through the top inspection hatch (filling port).
• Via the standard suction connection (e.g. Storz fitting) for pump operations.

6. Can the tank be filled with rainwater?
Yes. The tank can collect or store rainwater and can be used for site irrigation, flushing toilets, or cleaning tasks. However, untreated rainwater should not be used for drinking, cooking, or washing.

7. Does frost or cold weather affect the tank or water inside?
Only minimally. In very cold conditions, a thin ice layer may form on the surface, but the large water volume and insulated contact with the ground help maintain a higher internal temperature. The water inside generally remains above freezing.

8. What are the requirements for the installation surface?

• The ground must be clean, level, and free from sharp stones.
• A 10 cm sand layer (grain size 0/2) is recommended.
• A slight slope of about 1 % toward the centre helps stability.
• The platform must be compacted and at least 1 m larger than the tank footprint on all sides.

9. Is installation assistance available?
For smaller tanks (up to 180 m³), one or two people are sufficient for installation. Larger models (480 m³ – 700 m³) require three to six people. Installation guides and phone support are available if needed.

10. What is the expected service life of a flexible tank?
With proper use, flexible tanks can last 20 years or more.
To extend lifespan:

• Avoid long-term UV exposure (cover or place under shelter).
• Minimise extreme temperature fluctuations.
• Ensure stable, even ground.
• Clean regularly and inspect for leaks or damage.

11. How much maintenance is required?
Maintenance is minimal. The tanks are robust and built for outdoor conditions. A repair kit (fabric patch and adhesive) is usually supplied. Optional weed-control covers can help protect the tank and reduce maintenance around it.

12. Can you walk on the tank?
Yes, when empty or full — but only with clean, soft-soled shoes to avoid damaging the PVC fabric.

13. Are the tanks reusable or mobile?
Yes. They are made from tear-resistant material designed for repeated use and easy transport.

14. Do the tanks need protection against vandalism?
In public or exposed areas, it’s recommended to install a fence or similar barrier to prevent unauthorised access or damage.

15. How can the water level be monitored?
The fill level can be visually checked at any time. Optionally, level sensors can be installed:

• Float-switch sensors for simple full/empty indication.
• Hydrostatic probes for continuous digital monitoring.

16. Do extreme temperatures affect the tank’s function?
No. The tanks are engineered to operate from –30 °C to +70 °C without performance loss. They are used successfully in both hot and cold climates worldwide.