I tested my friends pool today. It is an ag 24x52
FC was 13
CC was .4
TA was 120
pH was 7.8
CYA was showing 100 so I done diluted and got to the 100 mark again so 200?
Heres their problem. The water is dingy, teal looking. And on the ladders you can tell it looks greeny. You can see the bottom barely but the water is really cloudy. I am thinking chlorine lock from the cya because theie pH and TA isn't bAd. I know the TA is on the upper extreme but can it cause the water problems described? Opinions?