SWMM56

Subject:    Example VSP Pump in SWMM 5 - Version 1 Here is one way to model multiple pumps between the same downstream and upstream nodes using the pump curves and the Real Time Control Rules (RTC) in SWMM 5.  Here are the steps: 1.    Enter the data for three pumps in the browser by using the Add Pump Icon 2.    Enter three Pump Head/Flow Curves so that the 2 nd and 3 rd Pump Curves are the sum of the flows in the 1 st and 2 nd Pumps together and the sum of the flows in the 1 st , 2 nd and 3 rd respectively for the 2 nd and 3 rd Pump Curves 3.    Enter a RTC Rule in the Control Editor so that when the 1 st Pump is turned on – the 2 nd and 3 rd Pump is turned off 4.    Enter a RTC Rule in the Control Editor so that when the 2 nd  Pump is turned on – the 1 st  and 3 rd Pump is turned off 5.    Enter a RTC Rule in the Control Editor so that when the 3 rd  Pump is turned on – the 1 st and 2 nd ...