Response to My pool is 10,000 gallons, I have measured the head length. From the skimmer it's 20ft to the pump, from the main drain it's 40ft but there are 2 drain openings about 18 in. apart not sure if I double that number. The pump that's in there right now is 1 1/2hp 2in.pipe.According to my cal.the replacement should be 1/2 or 3/4hp I want to replace it with a variable speed pump but I have only seen them in 1 1/2 hp and up. Would that be overkill? Thanks Scott

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