Translations:Pumpen, Betriebs- und Regenwasserwerke/131/en
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In this variant the drinking water backup is directly supplied through the "air gap" into the water storage tank. The "air gap" is then best integrated in a ready-to-connect assembly with fixed distances according to DIN 1989<ref name="DIN1989">DIN 1989-1</ref> with stopcock, strainer and slow-closing solenoid valve and is directly connected to the drinking water pipe.
