Just drained/refilled 25k gal in-ground plaster pool. I have an autopilot 220 sc48 swg. After refill brought chems to 7.0 PH, 45 CYA, 200 CH, 140 TA, 3100 salt. I turned on the swg before adding chlorine. The swg was on boost for 24 hours with zero affect. I added 3 gallons of bleach. No affect on chlorine. I added four gallons chlorine, one at a time over two days. Finally FC read 3 ppm. The swg has been running at 100%, power level 3 the entire time. In the past two days the FC has dropped to 2 ppm. The swg has continued at 100%, PL3. I do not think the swg is generating anything. Am I missing something?

Also, PH is continually creeping. I have added one gallon muriatic per day (1/2 am, 1/2 pm) and aerated (spa spill plus waterfall) all day. I cannot move the TA. PH creeps up to 7.6 at the end of each day. The next morning it reads at 7.2 Any ideas?

Thanks