i just went out there, my water is still a crystal clear green tinted water. even after raining all day yesterday. so i took the filter cartridge out to take a look. ewww, ugly. i rinsed it off and put it back into the pump. tried to turn it on but it will have to wait til my electric outside dries up. when it rains it trips my circuit. but i am thinking the dirty filter was the problem as to why i wasn't haven't the same amount of pressure. i read in another post about putting a sock over the filter. how big does this sock have to be LOL my filter is pretty big and round, not sure i have a sock big enough.