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Uponor International Sales
Industriestrasse 56, 97437 Hassfurt, Germany


Multi-purpose polyethylene tanks for water, sewage and other liquids

Weholite polyethylene tanks are distinguished by high quality, versatility and a wide range of capacities. Uponor Infra's offer includes tanks with internal diameters ranging from 1000mm to 3000mm and any capacity tailored to the individual needs of the customer. Weholite tanks are intended for the storage, storage or retention of:
  • sanitary, municipal and storm sewage
  • drinking water
  • storm, technological and fire water etc.
  • liquids produced by agri-food industry
  • aggressive industrial sewage
  • liquids used in biogas plants
  • other liquids (containing chemical compounds to which PE-HD is chemically resistant)
Uponor tanks

Advantages of tanks

  • Double walls and welded joints guarantee 100% leak-free operation and long-term durability
  • Non-toxic
  • Foundation in difficult soil and water conditions possible
  • Installation in roads and underneath car parks
  • Total resistance to corrosion and high resistance to chemicals
  • Long storage with no loss of parameters (UV resistant)
  • Low weight, quick and easy assembly (also in winter conditions)

Exceptional flexibility of Weholite

Flexibility is the distinctive feature of PE pipes among other conventional materials. Thanks to it, they perfectly cooperate with the ground, as if they were its natural element. Weholite pipe is flexible and does not crack under the influence of soil pressure, even with 30% deflection.

Dimensions and capacity of the tanks

Tanks with unlimited application possibilities

Fire water tanks

Fire water tanks for fire extinguishing equipment and installations.

Storm water tanks

Tanks for the retention of excess storm water and meltwater.

Sewage tanks

Tanks for storing sanitary and municipal sewage.

Water tanks

Tanks certified by the National Institute of Hygiene for storing drinking water.

Agro tanks

Tanks for water, sewage of agricultural origin and other liquids.

Smart tanks

Comprehensive and compatible stormwater management system with monitoring and control functions.

More information on tanks

Product catalogue 2023

Product catalogue 2023

Product catalogue PL, ENG, RUS version

storm water tanks Uponor

Storm water tanks for S3 expressway Sulechów - Nowa Sól ❯

As part of the project “Construction of the second roadway of the S3 expressway along the Sulechów – Nowa Sól section” Uponor Infra provided pipes, sewer manholes and retention tanks.
Water tanks Uponor

Drinking water tanks for the Arłamów Holiday Center ❯

Due to the location in the forest, the investment was not connected to the water supply system, so the new complex was to be supplied with water from deep wells. The tanks were installed in the body of the building 13 m below the ground, above the footings.
fire water tanks

Fire water tanks for Shopping Mall „Neptunˮ ❯

Uponor Infra delivered for this project 4 fire water tanks of diameter dn3000mm, ring stiffness SN2, and total capacity of 460m³. The tanks are to be used as a water reserve for the sprinkler system in the shopping mall and are filled from the municipal network.

Support for customised solutions

Do you need a tailor made product, or a turnkey solutions on a global scale? We offer full support within: design & calculations, tailor made products, field services, technical support and project management.

Complementary elements

Weholite pipes

The use of large-diameter pipes allows to increase temporary retention of storm water.

Retention canal

Possibility of efficient storage and disposal of storm water.


Tanks with appropriate equipment can be used as separators.

Manholes and chambers

They complement the Weholite retention systems.