I'm looking over my equipment after the lengthy time it has taken to clear my swamp. I used to drain my pool every year and refill. Water is cheap here. But my liner is on its 5th year and after reading advise here I decided not to take the risk of it tearing. My tests are fine but the water is cloudy and has been going on 3 weeks now. My pool is quite a bit too large for my filter system apparently. Thoughts?