Kunststof Forte BV

GEOdek® infiltration crate (price on request)

  • fast delivery time
  • safe payment
  • personal service


Rainwater is naturally clean! The diversion of rainwater into the sewer system disrupts the natural path of infiltration of rainwater! Infiltration replenishes the groundwater and prevents the city sewers and sewage works from becoming overloaded

Flooding and/or poor sanitation are often caused by rainwater, which cannot flow away naturally. Natural infiltration takes place wherever the soil has an uncovered surface and sufficient infiltration capacity to absorb the flow. However, technical infiltration with 2H GEOdek® can be achieved in areas where the natural infiltration capacity is low. Infiltration with 2H GEOdek® can even take place under paved surfaces, such as streets and car parks.

Rainwater infiltration

The concept is simple: the rainwater is collected on the surface and led underground to a 2H GEOdek® storage/infiltration tank. The rainwater flow is large in comparison to the infiltration flow. Our 2H GEOdek® attenuation system stores the excess rainwater during the storm and then discharges it again.

100% solution with 97% empty space

Rainwater attenuation is the preferred concept for rainwater management today. Local authorities encourage infiltration, but due to groundwater considerations, attenuation or slow discharge of rainwater into the sewer system is the most common approach. 2H GEOdek® infiltration boxes are > 97% void and are made of a rigid and environmentally friendly polypropylene matrix. The boxes exhibit exceptional strength and are resistant to all chemicals normally found underground.

2H GEOdek® is available in various qualities that are suitable for the different types of load to which it is exposed. Worldwide, 2H GEOdek® is manufactured according to a unique process that makes it possible to manufacture the boxes at the required strength. Standard boxes are available in seven strengths.

In addition to the advantages of natural water management, this system also offers financial and technical benefits.

  • No sewage system necessary
  • Less sewerage tax
  • Easy to customise, ready-to-use solutions
  • Easy and fast installation with 2H GEOdek®.


How does it work?

Technical rainwater infiltration is actually nothing more than buffering rainwater. In the event of a downpour, a large amount of water arrives in a short time, which needs to be infiltrated over a small surface area. The GEOdek® System buffers the abundance of rainwater during the downpour and then allows it to settle.

The installation

The installation of an infiltration system starts with digging a hole. A layer of geotextile is laid in this to create a filter effect with the underlying soil. The blocks are laid next to and on top of each other. Next, the pipework is connected, wrapped in geotextile (or membrane) and covered with the prescribed soil layer.


GEOdek® storage systems have been developed taking into account traffic loads and earth cover according to the standards specified in DIN 1072 regulations. The sketches below show typical recommendations in relation to static loads e.g. on car parks. Heavy freight traffic over GEOdek® locations does not cause any problems. Thanks to a unique production process, GEOdek® infiltration boxes can be manufactured in any desired strength. GEOdek® is available in 4 standard models. Other variants can also be supplied on request.



Order an Infiltration crate of GEOdek® at Kunststof Forte

Check out the possibilities on our website and you will benefit from a fast delivery time, safe payment and a personal service. Do you have a question about this product, or do you need expert help in choosing the right plate material? Please feel free to contact us for more information. For more information, please contact us at contact form Please fill in or call +31 (0) 622 340 847. We will be happy to tell you more about the possibilities.


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