Hello. I have a 29' round AG vinyl liner with 52" walls, which I believe keeps a depth around 48" or so. The lady that sold it to me said it was 20,000 gallons but by my calculations it is more like 24,000. Oh and I have a sand filter, if that matters.

I used an HTH 6 way test kit to get these numbers.

TH 500
TA 120
CYA >100
ph 7.2
Chl 0.5


For some reason the pool store had me add stabalizer when opening in May and had me keep triclor tabs in constantly. Which I have stopped using and am switching to BBB.

I would prefer not to drain the pool to bring the cya down, but what can I do.

I plan on ordering the kit spoken of so much here but for now this is all I have.