Here are my readings using the TF-100 test kit
FC 4
CC 0
PH 7.5
TA 110
CYA 40
12K gal, in ground vinyl, sand filter, using liquid chlorine.
FC 4
CC 0
PH 7.5
TA 110
CYA 40
12K gal, in ground vinyl, sand filter, using liquid chlorine.