my name is randy thx for your time I still have to put in my sig but I have 3 pools that I'm in charge of now so I have to write everything down lol...anyways 3 of the pools I manage have the self feeders for FC I'm just struggling trying to figure out what setting to put it at. It's a Rola-chem with a nob/switch you can set at 1-10 and has a timer which tells it when to feed directly into the Main drain. do those numbers stand for PPM? And the pool I'm having the most trouble with is 45000 gals rectangle 5 feet at one end and 3 ft at the other. CYA/stabilizer is at 50 but we just can't seem to keep the chlorine up in the 1-3 range. We already checked for phosphates and nitrates and there is nothing. The PH is perfect 7.4 and fyi these are all commercial pools.