Last year had green pool all summer. I would take apart de filter scrub and hose the tenicles and hook back up I would start the pump put earth then shock it like crazy but with in a half hour my filter would lose pressure and pump slows to much to move water in pool. I can't get filter to run long enough to clean pool so do I give in and empty pool and scrub liner and start over or anyone have a better idea pool is inground 14 by 32 I think it's 10 thousand gallons. Help please