I've just brought pool up to superchlorination. 2 days ago everything was in balance yesterday had become cloudy/milky.I couldn't get out to test yesterday.
Ph had been holding steady.
PH - 7.5
It's got to have something to do with the HTH Super Algae guard.
I added 2 lbs dry cyanuric which brought my cya up tp 50 last week. It had fallen from 60 to 30.
Borates also went from 55 to 30.
I don't want to add anymore dry acid just in case there is a chemical interference with present tests.I know what a problem it is when cya gets too high.
I forgot to mention...my chlorine won't hold...this is 3rd time in 7 days I have found free chlorine at 0 and shocked it. So it's dropping 16 ppm in 2 days and that is with a couple of pucks in a floater.