Posted by Visitor on May 15, 2000 at 17:16:25:
In Reply to: Scale forming impurities question! posted by Boilerman1 on May 08, 2000 at 21:00:47:
: Softeners are used to remove what scale forming impurities?
: A.) calcium & magnesium
: B.) zinc
: C.) resin
: D.) sulfite
Ca & Mg