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

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