I'm trying to understand the math of CYA buildup. I've read that one 3 inch puck adds about 3.3 CYA per 10k. But I've also read recently that CYA degrades at about 5.0 per month. Where I am, we have about a three month season. So if I put in 2 pucks a week, it would add roughly 78 CYA to my 11k pool. But the pool will lose about 60 during the year, not counting splashout and the partial drain for closing. Is that right? I use liquid now, but if I could keep a puck or two in the floater to supplement without too much CYA buildup, it would be a little easier.