I was using Costco tablets and my CYA went to 100. So I was told here to switch to bottled bleach. I went to the math calculator and it said to replace 44% of the water to lower CYA which I did. Now my CYA is at 40, which I believe is good. Looking at the CYA to FC chart here I targeted my FC to 6.
Problem it drops daily to levels like 3 or 4. I have to add bleach daily. Is it because I replaced 44% of the water?
Note: I use generic bleach not major brands. I didn't add bleach today yet as I want to hear the experts opinions here first.
FC: 0.5 (I didn't test in 3 days was too busy at work)
Thanks a lot