Bleach Calc

[Rangeball]

If I knew how much CYA each puck is adding

That seems to be the million dollar question.

I've looked and looked and looked, to no avail...

[aquarium]

Okay, thanks. I know it would be a rough estimate, but it would be good to know if after so much time I would want to drain down some water to dilute.

I emailed DuPont and asked them for the information on their product, we'll see.

TW