For CYA you need to go get some. The Bleach Calc also has CYA (conditioner) calc in it. With the bleach calc, you simply enter the number of gallons of the pool (for me, it's 13,500) then enter the parts per million of clorine rise desired (ppl cl) and hit the calc key, it will tell you the amount of bleach to add to raise the ppl cl what you told it you wanted. For instance, let's say my pool has a clorine level of 3ppm, and I want it at 4ppm. I tell it the gallons of my pool, tell it I want to raise it 1ppm, hit enter, it will tell me the amount to add.Originally Posted by sisie5
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