Lots of rain and backwashing this summer has caused my CYA to drop from 50 to a number that I can't read on my Taylor kit (less than 30). So, I've been floating a few trichlor pucks in the floating dispenser thingy. My pH tends to climb, so I'm not worried about that aspect (currently 7.6). My total alkalinity is good at 70, but I wouldn't want it to drop too much. I'm seeing a very slight increase in CYA, so I might abandon this ... but thought I'd get your input. Any problems with this idea, other than it's slow?