Been noticing a slight upward trend in my pH levels over the last couple of weeks. I'm guessing it's due to heat. My pH used to live in the 7.5-7.6 range but lately it's been creeping up a bit. Today, I would say it's just under 7.8 but not quite there. My other levels are below.
FC - 5.5
CC - .5 (heavy swimmer load today)
TA - 80
CYA - 70
Salt - 3900 (high and it's my fault after a bad cell issue, it's slowly coming back down...fun)
Should I wait a little longer to add some muratic acid and bump the pH down or go ahead and do it now? If I need to do it now, that leads me to my next question. I haven't had the need to lower or raise pH yet and I know it's done with acid or borax depending on the direction. Can I find muratic acid at my local WalMart or am I going to have to go to the pool store or some other store to find it?