Back with more questions!
Pool wasn't quite holding high enough at 25%, it was at 3 today when it needs to be minimum of 4. The heat index was 100, so that's probably why... I definitely need to order some more CYA. I bumped it up to 45%
But, I ran the full arsenal of tests and everything seemed good except CSI. According to TFP it's -(negative)1.50, and it says it should be -0.60-0.60. Do I need to get this adjusted?
FC 3
CC 0
PH 7.2
TA 40
CH 100
CYA 50
Salt 3650
Temp 79
CSI -1.50
My TA and PH are technically low, but that's just how it's always been. The PH is extremely stable, I rarely had to adjust it and if I do it's because it went down.