Cloudy Water

[dragonslayer]

Hi and thanks for any input. I have a 13500 gallon, plaster in-ground pool.

Mechanics: Pentair automation with Pentair VS pump and cartridge filter. Pentair IC40 SWG. AquaCal Heater.

I use Taylor tests only.

CYA 35
FC 2.5
CC 0
TA 70
PH 7.6
CH 525

I’ve had cloudy water that will not clear. Filter and fell have been cleaned.

 

[mknauss]

Welcome to the forum!
Do a Overnight Chlorine Loss Test. Raise your FC to ~8 ppm or so and follow the process. You most likely need to follow the SLAM Process
I suggest you read ABC's of Pool Water Chemistry.