Honestly I can't tell people enough about Kinetico and our experience should they be looking for...
Non-Electric, High Performance Combination System
Powered by the kinetic energy of moving water—not electricity—these exceptional water softeners soften and remove odors and chlorine from your family's water. The unique multitank system provides a reliable, continuous supply of clean softened water with no timers or computers to set, adjust, repair or replace. In addition, Kinetico water softeners are protected by a 10-year warranty on all parts.