Quote Originally Posted by waterbear
Frog is a silver/zinc system.
FWIW, the King Tech website states it is a silver/limestone system and doesn't mention any other minerals that I have found.

>>What minerals are in your system and how do they work?
Silver and limestone. The silver destroys bacteria and the limestone absorbs acids from chlorine and shocks helping to maintain a neutral pH.<< Found at http://www.kingtechnology.com/infostation/info2.htm


ePoolUser
Steve