19k vinyl pool pentair filter sta-rite 3/4 HP pump
Pool was fine yesterday (Monday) pre-deluge. Today it's cloudy. The CL was about 0, I went to do a test and a scoop didn't even turn the 10ml water pink. I've done enough of these tests to know there was max .5ppm. I do a container of bleach every three days like clockwork, and today was the day to add it. I usually wait till after sunset but at this level it had to go in.
The only thing that changed was, I put a couple of products in on Saturday for staining on my stairs that had happened over the winter and never went away, even though the water has been perfect shortly after opening. Tried scrubbing with very limited success. The products worked, they were Ascorb-X (ascorbic acid) followed by Keetrol Plus (no info on what it is). The pool guy at the convenient clip-joint said check TA and pH levels the next day, you may have to raise 'em back up. Well they didn't seem to affect 'em much, so I didn't think anything of it. My TA has been around 100, but after the monsoon it seems to read 120 now, which is not alarmingly high, and pH is around 7.6.
My natural culprit would be these products, but we had guests Sunday, pool was perfect, yesterday before the storm I enjoyed it for a little bit and again, perfectly clear.
Do I need to lower the pH to 7.2 then aerate? I don't seem to recall that high TA causes cloudy water.
I did notice the pressure was up a little on the filter, but not to "backwash now" levels, just a few pounds high, and the baskets are clear. I'm stumped.