Translations:Pumpen, Betriebs- und Regenwasserwerke/95/en

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The geodetic height (Hgeo) is equal to the difference of height between the point of extraction and the lowest water level in the tank. The flow level (Hfl) corresponds to the pressure, which must be available in the fixture to ensure smooth functioning. The loss head (Hv) consists of the suction pipe portion (Hvs) [the pipe between pump and controller, in case of submersible pumps] together with the rest of the piping system in the house (Hvr):