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Banbury, Oxfordshire, UK-OX16 4SP

Rainwater infiltration retains the natural cycle

Local rainwater infiltration is often required by law. As more and more ground is sealed with buildings, car parks and roads, the sewer system is having to work harder and the risk of flooding increases. GRAF infiltration systems are here to help. They make sense both ecologically and economically because they take the strain off the sewer network and save surface water drainage charges.

EcoBloc maxx

Stormwater management system with various applications, Lorry-bearing 40 tons/HS-20, 410 m³ (14.480 ft³)/Truck

Here you can find general information about infiltration and dimensioning.

All about stormwater management

Please find here a selection of references for Infiltration.


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