I had to leave town as soon as i completed the ascorbic acid test on my pool so I left asking my GF to put polyquat as listed on the bottle to prevent algae. I left with:
Last night, upon return (after a week) i saw the pool water was cloudy with little foaming and level had dropped way more than i usually let it but no algae, and tested as:
CYA did not test
BOR did not test
Added water to bring level up (a bit over 600 Gallons) and, added enough acid to lower pH to 7.2 and chlorine to raise levels to 3ppm. Changed skimmer sock which was chocked. Pump has been running as usual even while i was gone.
Today the tests show:
TA did not test
CH did not test
How can CYA go down to zero when i tested the pool before the ascorbic acid treatment and it was 30? I tested twice to make sure and all chemicals are fresh.
Any help would be appreciated.