The HC-Series of heavy commercial water conditioners from Water-Right, of Appleton, Wis., offers capacities between 60,000 and 600,000 grains and flow rates to 107 gallons per minute, ideal for use in car washes, nursing homes, apartments, schools, boiler feeds, cooling towers and light industrial applications. The systems use a lead-free, solid brass piston-type controller that can be expanded to multiple tank configurations for applications requiring continuous soft water or higher flow rates.