I was wondering about the stabilizer. I added the recommended amount for my pool in July and my CYA registered zero. I added another full amount 9 days ago (late Sept) to balance my water before closing the pool for the winter and it is still registering zero. I used a sock and put it in the skimmer both times. Should I worry about it? Here is how everything looks. I have a vinyl pool with SWG.
FC 5
PH 7.6
TA 50
CH 60
CYA 0
Thank you
FC 5
PH 7.6
TA 50
CH 60
CYA 0
Thank you