My CYA was 45-50 about a month ago. Today it's closer to 65. What would cause this increase? Only using Clorox, fc not below 5 for the month. Very small amount of cc <1. Had a solar cover on for about 3 weeks. 65 is probably ok, but I'd rather have it below 50... especially if I need to shock.
My ph also keeps going up. I get it to 7.5 and in a week it will be over 8 even after adding 2-3 cups of acid. Seems odd after all being close to perfect all summer.