From reading the stickys, I read for SWCG that the recommended CYA is 80. I also read somewhere that this is to help the SWCG keep up. I have a 12k gal pool that was originally on a hayward t9 cell.When it died, the store sold me for the same price a t15 because they were out of t9s. They said to just adjust its output lower.Does this mean that I can also get away with a lower cya? I'm not fond of having the cya as high as 80...