Our aim was to provide a modular drainage layer to avoid excavation in archeologically important area and to minimise mains water use. The perfect solution is the 150mm Infiltration Equaflow Layer including concrete kerbs and race rail. This resulted in Extremely consistent sub base and surfacing, completely free draining, the Eqauaflow void under the track allows surface water to pass under the track
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Permavoid is leading specialist manufacturer of surface water management products and extensively cooperating and collaborating with distributors, universities and clients worldwide.