With all the discussion about chlorine pucks and feeders, why are there no 3' pucks avaialbe without CYA in them? Is it impossible to produce chlorine pucks without the stablizer in them? I'm to the point now, (and I was warned here by a few that it would happen), where my CYA is getting too high to use my feeder. I have been using straight chlorox for the past couple of days. It seems to me that someone would make it without the CYA. Or, is the their way to make up spend more money by having to use more chlorine and shocking more?