I have a 22,500gal pool with a hayward 210 filter. Last year I had fixed lateral that were broken. This was the 2nd year, and they were hard to find, so I upgraded to a SX210 lateral assembly. Sand was replaced then with 200lbs. I also replaced the pump which had started making noises. The new pump is a SP2610X15. I have had nothing but trouble since. The only thing I could get to clear it last year was floc, then vacuum to waste. I then replaced the whole multihead port to see if that was the problem. No joy.
This year is the same. It seems to stay clear until I turn the pump to filter, then it gets cloudy. Chemicals are good. I have even hired a local pool place to fix it. They have been here daily messing with the chemicals. Algicides and clarifier and keeping the chlorine high. It's been a while week so far. You can just see the square of the deep end bottom but you can't see the bottom drain. Anyone have any ideas?