Posts in Sites Wales
Buried Tideflex valves can self clear: Llansteffan Towy Estuary

Coastal and river outfall pipes can be partially or completely buried by sand, shingle and mud. These materials can be deposited in a single tide or change with river currents so planned clearance is of little value. Tideflex all rubber check valves are an excellent alternative to flap valves for these outfall applications. 

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