Crazimom - You say that your numbers are good. The only actual number you posted was your cya. I would suggest posting all your numbers. I'm especially interested in seeing what your calcium hardness reading is since you are using cal-hypo. As far as using the bleach, give it a try. It can't get any easier than opening a bottle of bleach and slowly pouring it into the skimmer. As the others have already said, your cya is already at the upper end of acceptable at 60. I actually don't like mine to be that high. Using pucks, it is going to continue to rise. You don't want that. Post some numbers for us to look at and give the bleach a try. I don't think you'll be sorry.

Watermom