I just got the intex purespa. The one with the swg. I added 4 lbs of salt it called for 4.4. Didn't want to over do. I turned the heater on last night. Temp is good now. I need to run the swg to start sanitation can I run it same time as heater? Also how many hours should I run I'm in az temp last couple days approx 100. Do I need to add cya? Or is that just for salt pools?