How do WaterCAD and WaterGEMS calculate head losses through a hydrant lateral?When choosing "true" for "Include Lateral Loss" for a hydrant, what friction coefficient is used to compute friction headlosses?
Problem ID#: 42960
Hydrant lateral losses are calculated by the pressure engine the same as any pipe (the lateral pipe is actually loaded into the model), using the supplied lateral diameter, minor loss coefficient and length. Additionally, the engine assumes the following friction coefficient values:Darcy Weisbach e: 0.0009Hazen Williams C: 130.0Mannings n: 0.012
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