It seems like I have been going through alot of Chlorine as of late, and I finally got time to test my CYA tonight, and it is less than 20, I can see the dot clearly with the tube full. The beginning of the year, it was 30. I have been attacking my TA through aeration, could that have made the CYA go away? I added 1 1/2 pounds tonight, which should bring it back up to around 35. I have an 18 foot round, 7600 gallon pool.
No Combined Chlorines.
Cl is 5
ph is 7.5
TA is 120
CYA is <20
No Combined Chlorines.
Cl is 5
ph is 7.5
TA is 120
CYA is <20