KINETICO makes the only non-electric, completely automatic water conditioner on the market. It not only removes all your objections of electric water conditioners, KINETICO offers you many advantages. A meter that measures the volume of water used; thus it regenerates only when necessary, and only uses 1 pound of salt (model 50). Multiple adjustments are not necessary as with electrics. Regenerates only when necessary, automatically adjusts to your water usage, as when unexpected guests arrive or when additional laundry is done. KINETICO offers you two mineral tanks, so one is always on duty while the other is being regenerated. Easy on septic systems and pumps. Filters out rust and iron as well as hardness. With KINETICO there is no "down" time. Your soft, conditioned water is available 24 hours a day, even during regeneration. No hard water bypass. The possibility of electric shock is eliminated. No manual regeneration is necessary. Disconnection at vacation is not necessary. KINETICO Water Conditioners are certified under the National Sanitation Foundation. AMAZING? YES!