my only 2 month old tub ( 1 month since water refill) is showing brownish stain around water line ????
I just noticed when i checked chlorine FC 4.5 cc 1.5. So i shocked to at least 12 and was going to leave uncovered and running to rid the cc
my TA is 50
CYA 30
CH 130
Borates 50
pH ?? last was 7.8
I just noticed when i checked chlorine FC 4.5 cc 1.5. So i shocked to at least 12 and was going to leave uncovered and running to rid the cc
my TA is 50
CYA 30
CH 130
Borates 50
pH ?? last was 7.8