So I was reading Chem Geek's post in the following thread, it seems that chlorine does oxidize CYA? I thought that CYA doesn't deplete, it will only reduce from one of 2 things which require topping off, thus diluting it. Splash out, or backwashing.
Then of course the occasional algae or bacteria that'll eat it.
So what's the real story, the non-newb story?
Or does this only happen in the high heat environment of a hot tub?
Originally Posted by Chem Geek