UNDERGROUND WATER TANKS 

Polyethylene tanks for burying, also vertical, with variable capacity: from 1,021 to 10,700 litres. They have a smooth, thick surface or a corrugated surface, designed to suitably resist the thrust of the surrounding soil. Smooth-surfaced tanks have provisions for loading, unloading and total emptying; tanks with a corrugated surface can be equipped with an upper passage for inspection and are suitable for the containment and recovery of water.