Water is beautiful and sparkly; however, I do have to add acid every other day. CYA was at 112, did a large backwash on 4/1 and got it down - test results are from today. We use 3" BioGuard Silk Tabs. Pool store had me buy ProTeam 3" Pure Tabs as they are supposed to contain less CYA - Is this true b/c it's all Trichlor? Don't want to drain water as it is very expensive - avg mo bill in winter is $200, double that in summer. Can I use Clorox Bleach for the next couple of months to maintain chlorine and allow CYA to drop through backwashing/rain/splash-out? How can I get my CYA back down to 40ppm without having to drain half my pool? Once it's down, how do I prevent it from rising again? Our pool is only 6mo old. I don't want to drain it every 6mo's to keep CYA in check. How do I stop it from constantly climbing?