Water tightness

The plant must be watertight up to the height that the manufacturer specifies. The minimum allowable height is the upper edge of the tank. Depending on the material, the test may be carried out either with water or over or under pressure. While systems and tanks made of plastic may not exhibit leakage, tanks made of concrete may lose 0.1 l per m² of the wetted interior surfaces of the outer walls within a period of 30 minutes.

Protokoll der Wasserdichtheit eines Betonbehälters

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