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Submersible water pump question
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Most regular submersible garden pumps should have the "oomph" to push water up eight feet. If you have a 'mini' submersible you might have a slower and possibly inadequate flow. The physics of the situation are simple. Water weighs about 8.7 lbs per gallon. Most of the submersibles that I've seen have at least a 20' lift or about 170 lbs. of lift. If your run of 30 to 35 ft is all uphill plus a final push going straight up, of say another 5 ft, may pu***he limits of your pump. It may work in the beginning, but as time goes on, wear and tear may take its' toll. Most garden centers that handle equipment for water features should have a chart that can help you figure your needs rather than having to do the math by hand.
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