The DIBt®-approval is one innovation of the DRAINMAX tunnel system. It is with 1.6 m³ a large volume and light plastic tray system that creates a hollow space in the soil. With these, the rain water can be directly retained at the source and will infiltrate through the open soil and side holes. It is possible to also restrict the water flow to only the pipe. This technology saves significant costs on laying complex piping systems. You can also use the DRAINMAX tunnel system for infiltration of effluent water from sewage plants.
Truck load capacity and DIBt® approval
The DRAINMAX tunnel trench was the first ever to receive building authority approval from the German Institute for Building Technology DIBt® for SLW60 heavy-duty class.
Best price per m³
Optimized production, minimum transport volume, minimum space requirement, huge storage volume and fast installation performance result in the DRAINMAX tunnel offering the best price per m³ storage volume achievable for plastic trenches.