Helping someone clear a swamp pool. We've vacuumed all the silt out, shocked out all the ammonia, vacuumed more, slammed the pool continually and we are getting close to switching back to a puck feeder. they have a bucket of leslies 3" tabs and what appears to be a pentair model #320 feeder. The pool is about 21,500 gallons and we have balanced the pool, I have a taylor test kit and have had a pool for 15 yrs but I use a SWG. My question is how many pucks should I put in the feeder and roughly Where should I set the dial on the feeder to start with? I'm in SE Texas so it is as hot as fire and occasional heavy rain if that matters much.