Pump Stations: Control Elevations

Joe Peterson Blog, Jensen Water Resource Blog, Pump Stations

Now that we know our minimum storage volume as well as the size of our wet well, we can determine the system’s control elevations. In a duplex pumping system, there are 5 primary elevations of concern: the pump inlet, pumps “off”, lead pump “on”, lag pump “on”, and high water alarm.   The distances between these elevations are represented with the following variables: H(x) = Pump Inlet to the Pumps “Off” Elevation H(min) = Pumps “Off” to the Lead Pump “On” Elevation H(lag) = Lead Pump “On” to the Lag Pump “On” Elevation H(res) = Lag Pump “On” to the …