Dave S...thanks so much for your swift reply.

I'm new to this forum, obviously, and I'm also new to the idea of using chlorine bleach instead of pucks. I'm diligently combing through this web site to learn more.

Yes, I'm using pucks and have been since I opened the pool not quite 2-years ago. Having said that, although I find the test kit EXTREMELY helpful, the CYA test is a bit subjective. So I re-did it, and now I think that my results are more like 60 ppm.

At any rate, thanks for the tip on shocking...I'm probably overdue. And I'm fairly certain I'll be moving away from pucks, but want to make sure I fully understand the alternative, first.

Thanks, Rick