FC target 6
FC before daily chlorine addition 3
Current CYA 30.
New CYA target 40. Will be testing and adding CYA soon.
Last week, my FC was getting really low everyday (1-1.5) and I was using 25 -30 oz. per day. So I did a CYA test and of course it was under 30. (Hate that the K2006 CYA test doesn't go below 30. ) Didn't help that we were having high 90 deg days with periods of heavy rain. Needless to say I was burning through some chlorine and the walls and bottom kept getting a little slimey. I brushed. I SLAMMED. It's back to clear and trouble-free.
Currently using 16oz. of 12% daily. For a 5300 gallon pool in the middle of summer, is that normal?
Can heavy rain lower CYA by 10-15ppm?
Is trying to maintain CYA of 30 realistic?
Is there another good test option for CYA that doesn't require a lot of reagent?