I used tf-100 kit with magnetic spinner:
here are my results
9/18 8:30 pm - 10:30 pm
pool is located Helena al 35808
22600 approx pool volume(36’ x 16’, depth 3-7.5’) rectangle
Ph 7.5
FC 4.5
CC .05
CH 75 ppm
TA 50
CYA 30, did this test twice
I am using the robot vacuum a few times a week and...