After opening the pool this Monday I just got to the balancing. The usual, have to bring the TA to 120 from 60 etc.
But I noticed my CYA (as measured with he TF kit) is about 20.
The FC after adding a gallon of 10% stuff (and the bottle was bought last fall) this morning is 6ppm witw 0.5 ppm CC.
Anywho, CYA after being well over 100 two years ago dropped to about 50-60 last opening of 2017 and is now 20.
Q: I was struggling with it and praying it falls off; now that it is that low, do I want it up?
If yes, I bought some Cl tabs like 3years ago, that still are good (judging by smell) and contain CYA, and I have not been using them for this very reason - did not want CYA to go up. Is this a good way to bring it up? And how much will it be going up per tab? (20K gallon pool)?
Mike
But I noticed my CYA (as measured with he TF kit) is about 20.
The FC after adding a gallon of 10% stuff (and the bottle was bought last fall) this morning is 6ppm witw 0.5 ppm CC.
Anywho, CYA after being well over 100 two years ago dropped to about 50-60 last opening of 2017 and is now 20.
Q: I was struggling with it and praying it falls off; now that it is that low, do I want it up?
If yes, I bought some Cl tabs like 3years ago, that still are good (judging by smell) and contain CYA, and I have not been using them for this very reason - did not want CYA to go up. Is this a good way to bring it up? And how much will it be going up per tab? (20K gallon pool)?
Mike