Quote Originally Posted by Rangeball
like this one-

http://intheswim.com/Pool-Chemicals/...een-To-Clean-/

Says they greatly increase the killing powere of chlorine. I'm sure more chlorine does as well, but just curious what the heck this stuff is and how it's supposed to work
I believe it is a amonia based product. I noticed it says it is made by Coral Seas, which also makes/markets Yellow Out. Other than removing money from your wallet, I'm not real sure how it works.

Dave

Edit: Oops, Crackerjack beat me to it