5 days back I thought to test water from pool supplies store, so I went with water sample and came to know that CYA is 125 out of my 28000 gal pool. So person suggested me to drain 1ft of water, so I drained and refill 1.5 feet and then went back for testing. This time FC was low and CYA came down to 120. Suggestion I got after water test - add 3 lb of Chlor-bite (dichlor) and keep filter running. then I went back next day for third test and strange CYA went up to 135 and FC was 2.6. Suggestion came to drain again to 2 feet.
I am not sure what causing CYA going high, I do not have anything added but Chloro-bite.
Any suggestions?
I am not sure what causing CYA going high, I do not have anything added but Chloro-bite.
Any suggestions?