Water retention tankWater retention tank

Water retention tank - VOLUTEX

The water retention tank is an open tank with a modular metal frame made of galvanized steel.

This solution can store for a temporary or permanent period all types of solid or liquid elements. 

With a volume capacity ranging from 5 m3 to 120 m3 – or even more thanks to the possibility of custom-made tanks – you can store a large quantity of elements.

This open top water storage tank can be used in different ways, such as: 

  • A water reserve
  • A fish pond, (see an example of application
  • An effluent tank,  
  • A fertilizer silo
  • A safety sandbox
  • Or even as a storage tank for decantation sludge.

The water retention tank is very easy to use: it is light and takes up very little space. It can be deployed extremely quickly and does not require a building permit (depending on the size of the tank).  It is also very easy to clean in case of water pollution by sludge, leaves, sand etc…

In addition, to avoid the arrival of any foreign elements in the cistern, it can be accompanied by a flexible roof to place over the tank. 

This tank is made of highly resistant PVC coated fabric (1300 gr/m2) and assembled by high frequency welding. This fabric is resistant to any temperature from -30°C to +70°C. 

In the same register, we find the OPENTANK onion water tank, an open flexible tank mainly dedicated to civil security and humanitarian organizations.



  • Very lightweight, limited footprint
  • Sealed envelope


  • Highly resistant
  • Equipped with a modular metal frame made from galvanized steel


  • No building permit required
  • Quick and easy deployment
  • Easy to clean if the water is polluted by sludge, leaves, sand, etc.

Detailed information

  • Material: high resistance 1300 gr/m2 cloth
  • Coating: double-sided PVC
  • Assembly: high-frequency welding
  • Temperature resistance: -30°C to + 70°C
  • Tailor-made
  • Accessories:
    • One DN50 pipe with direct passage valve, half-connector, and symmetrical Guillemin cap.

Technical informations

Capacity (m3) Height (mm) Diameter (m) Nbr. of feet Total weight (kg)
5 1500 2300 8 75
10 1500 3000 11 105
30 1500 5200 19 190
60 1500 7000 26 210
120 1500 10300 38 415

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Care during use
Avoid any contact with surfaces that are too abrasive or have cutting edges. Never exceed the product’s rated capacity. Refer to the Installation manual.
Maintenance advice
Clean outside parts with clear or soapy water using a soft brush, rince and dry.
Storage advice
Store always in its original box, away from light, humidity and temperature variations.

Standards / regulations

ISO 9001, ISO 140001, ISO 45001


Fact Sheets / Business Guides
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