where to get cyanuric acid?

[DavidD]

If it were me, I'd use Michaels Bleach Calc once again. Measure the length, come up with an average width and depth. Input those under Oval maybe in the More Calcs, Pool volume tab. You can probably come pretty close. I kept doubting that my pool was only 16K gallons at the beginning of last season so I tested FC (.5 with no CC), added 1 gallon of 6% bleach after sun down and tested again 1 hour later to find that FC was now 4. By backing into the bleach calc, I determined that 16K gallons was probably right. This wasn't very scientific but did reinforce what the builder had told me was his best guess.

[Brock]

What’s the difference between cyanuric acid and muratic acid? I have always been using muratic acid. You can find it any place that sells paint, like Home depot or other home improvement style stores.

[DavidD]

Cyanuric acid is CYA/Stabilizer. It's the chemical in the pucks you posted about before. It helps to prevent UV degradation of chlorine.

[kaybinster]

What’s the difference between cyanuric acid and muratic acid? I have always been using muratic acid. You can find it any place that sells pain, like Home depot or other home improvement style stores.

Muriatic acid is is hydrochloric acid (HCl) that I believe is about 24% in strength. It will only lower your pH not stabilize chlorine levels.

[Brock]

DOH, yes, yes, I remember now. Brain freeze, I was thinking is was something to use in place of muratic acid. With an indoor pool I never worry about CYA, sorry.