Thank you for all your help. The pool temp is 68-70F. Here are the results (first number is my test results testing with TF100 test kit, 2nd number is the results from taking a sample to the pool store)
ph: 7.2 (from comparator block), 7.4
FC: 1 ppm, 0.4 ppm (target 1-4)
CC: .5 ppm, NaN
TC: 1.5...