A hilltop subdivision takes water from a river 500 ft below it during the night through a pump storage facility. When morning comes, water will be returned to the river with the use of turbines. Entrance and exit pipes both measure 30-in in diameter and both are 2500 ft long and the flow rate is 20,000 gpm. What should be the pumping power required in horsepower if friction loss amounts to 15 ft of water? Assume that the pump is 100% efficient.

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A: Solution for this question is provided below ⬇️...Explanation:

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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.