Just checking

[medvampire]

I would say that would be a normal chlorine loss. As for the CYA I will let the pros here answer that one. I havent messed with liquid CYA
Steve

[waterbear]

Interesting that the liquid monosodium salt of cyanuric acid didin't raise your cya like advertised. Only one company has this product and if it really worked I am sure every product company would have it on the market! I wonder exactly what chemisty goes on with it when it is added to the pool.