Infiltration systems act as a soakaway, allowing rainwater to permeate the ground, replenishing the water table and provide a cost-effective solution to a number of site drainage problems.

The areas of permeable land where rainwater can soak away are diminishing as a result of an increasingly built-up environment. Traditional drainage moves storm water as rapidly as possible to a watercourse or river. This is normally achieved via gravity pipelines or culverts. Sustainable drainage systems replicate natural drainage patterns, keeping rainwater on site longer and controlling run-off: helping to reduce the risk of flooding.

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