The pool we got used came with some chlorine pucks. I started things up on Saturday. As of last night my CYA was at 50. How much will a puck raise the CYA if I decide to use them up? I thought I saw a reference in another thread to it raising 10 points, but I can't find the thread and don't recall what size the pool was. Should I get a floater or can I just drop a puck in the skimmer basket?