VEVOR Sand Filter, 16-inch, Up to 35 GPM Flow Rate, Above Inground Swimming Pool Sand Filter System with 7-Way Multi-Port Valve, Filter, Backwash, Rinse, Recirculate, Waste, Winter, Closed Functions | VEVOR US
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It's my first summer with a pool and I can figure out how to backwash my sand filter. I turn the filter off and rotate it to back wash but no water
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