Hello guys, in rescuing my dirty pool and bringing it back to life I used muriatic acid to reduce the ph to 7.2 and then trichlor tabs seems to have further reduced it to 6.8. It's been like that a couple of days (which I honestly thought would be okay) but this morning I noticed my main drain bubbling and it seemed to want to suck air from it. If I broke the main drain, fine, but I was curious about the damage from incorrect ph. Does it happen in minutes, hours, days, months, etc. Should I get my wife to go buy some borax right away or do I have until after work. I probably should have handled this yesterday but I was too busy working on other things. I also kind of thought it would rise on it's own as was indicated to me. I've aerated it for several hours on multiple days.
Note: FWIW it seems from my googling that low ph would tend to affect metals mostly of which I'm not sure there are any in my water right now (no ladders, railings, etc). Just the pool light. I don't know if the pump impeller is plastic or not.