Dave,

Sorry, I didn't answer your question. I always ran my pump full time when using pucks. I would place the skimmer basket (with pucks) on my plastic top rail if I added bleach (to shock) in the skimmer, and then replaced the basket.

I would assume some dissolving would still occur since the puck is wet. Maybe try putting one in a sealed sandwich bag. If it dissolves you will see it. Secondly, if chlorine gas builds up in the bag it will expand. Just an idea. That is if you are talking about one puck at a time.

When I first joined the forum (about 5 yrs. ago) I asked Ben how much CYA a puck would add to a 16,000 gallone pool and he said "about 1 ppm."



Harry