I guess I should have put my pool info in...12,000gal IG exposed aggregate surface. Cartridge filter...not sure what size. I don't know what type and size pump we have...the mechanics are more my husband's area

I can try to add pH chems in the AM if I can...I actually did that over the weekend, and it worked out quite well. I always add bleach at night...usually it's not much...maybe 0.5 gallons every few days. That's good to know I can let the pump go off at 8. If I end up having to add acid PM as well, should I let the pump run longer in that situation? I really don't like adding acid or chlorine to the skimmer either. I usually concentrate around the returns.