Prelocation block

The flexible, high-performance percolation bloc is ideal for use in public and industrial areas. The percolation bloc guarantees extreme load-bearing capacity thanks to its stable column structure. With an earth covering of 800 mm, the lorry-bearing design can take HGVs (SLW 60). There are no limits on the use and design of the surface over the plant. Whether it is a parking space, works entrance or storage area – everything is possible.

High-performance
The lorry-bearing design guarantees extreme load capacity thanks to its stable column structure. The percolation module can bear 10 t per sqm (SLW 60 capacity possible for low traffic roads) with a covering of 800 cm of earth. The vehicle loading version can bear a long-term load of approx. 3.5 t per sqm. There are no limits on the use and design of the surface over the plant. Whether it is a parking space, works entrance or storage area – everything is possible.

High storage volume
The GRAF percolation bloc 300 can hold 3 times the volume of a conventional gravel ditch. 1 module (15 kg) replaces approx. 800 kg of gravel and 36 m of drainage pipe.

Cost-effective
You will save real money with the percolation bloc by saving on ground excavation and thanks to the good price-performance ratio compared to a conventional gravel ditch!

Can be extended as required
The percolation bloc can be installed in rows or block form, with 1 to a maximum of 5 layers, depending on the local conditions and the desired storage capacity. The system has already been installed at several large properties, such as shopping centres and stadiums.

Easy to install
Installing the module is easy, fast and variable. It can be installed without heavy equipment – a percolation bloc weighs just 15 kg. The individual modules are connected using practical fast connectors.

Three-dimensional flow behaviour
The special construction of the GRAF percolation bloc guarantees lasting, high percolation performance.