Xavi Posted December 11, 2023 Report Share Posted December 11, 2023 I had a STA-RITE Sand filter. We had sand come into the pool suddenly. We changed it for a Hayward Sand filter (top mount model) with new Sand. It was good and then suddenly we are seeing sand in the pool again. The filter is connected to the motor which was connected to the manual backwash level from the old STA-RITE. Any idea what I could be the causes? Quote Link to comment Share on other sites More sharing options...
waterbear Posted December 12, 2023 Report Share Posted December 12, 2023 have you checked the gasket in the backwash valve? It probably needs changing. Quote Link to comment Share on other sites More sharing options...
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