I have a 23,000 gallon in-ground vinyl liner swimming. Pool is slow (almost two weeks) in clearing. I can now see shallow bottom and slightly down the drop but still not able to see drain at 8 feet down. I am able to hold chlorine and PH at any level I need (Shock or normal) for extended time. Only use liquid CL. CYA is 50, No algae just clear/blue but cloudy. Pump pressure only peaked once in 2 weeks. Pump runs 7 x 24. Alkalinity is high (170).
I am thinking about adding a slight amount of DE to my sand filter to improve filter efficiency.
What about chemical products such as pool polish, a natural clarifier that uses natural ingredients such as Chitosan, PowerFloc or additional filters at the skimmer?
Looking for opinions.