A pump is to deliver 80 GPM of water at a density of 61. 83lb/ft cubed with a discharge pressure of 150 psig. Suction pressure indicates a 2 HG vacuum. The diameter of the suction and the discharge are 5 in. and 4 in. respectively. The pump has an efficiency of 70% while the motor efficiency is 80%. Determine the (a) water horsepower of the pump (b) bhp of pump motor (c) power input to drive the motor

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.