Water conditioner
Clearwater Enviro Technologies, Inc.’s ScaleBlaster is an innovative and compact state-of-the-art computerized water conditioner that is installed on the incoming water line entering the home, building and  equipment to be serviced. The integrated circuitry system produces a unique and complex modulating frequency waveform that hits the resonant frequency of the calcium molecules, causing them to lose their adhesive properties. Existing limescale is removed without reforming, reducing the need for chemicals, salt, maintenance or filters. There are 13 models available to handle any size and type of pipe up to 40 inches.
http://www.scaleblaster.com
(800) 756-7946