Hey pool braintrust!
I got the house and pool in July and since then its been great. I've been trying to raise the CYA for the past 2 weeks though with NO results.
the previous owner left me a large container of Cyaneric Acid. I've probably added 120 volume ounces to the 40,000 gallon pool and CYA is still registering 0.
CYA is supposed to be the first step to a long term healthy pool... so now I'm starting to get worried... hahaha.
It's a vinyl pool. 40,000 gallons. PH is right at 7.4-7.6. FC is wildly fluctuating because CYA is 0.
I've been maintaining it by dropping a gallon of concentrated bleach (walmart 8.25% I think) every other night. Pool has been clear for over a month now as long with occasional slight (very slight and only because I am looking for it) greenish hue if I skip bleach night.
My long term plan is to keep the pool open year round if I can while covering it for the fall months because of the overhanging trees from the neighbors yard.
EDIT: bad math. 120 ounces, not 240. a cup is 8 OZ not 16... der...