The 9500 Series features a twin mineral tank system governed by a 1.5” meter initiated control valve. One softener tank is in service, delivering soft water, while the second softener tank is held in reserve. When the softening capacity of the service tank is exhausted, the control valve automatically switches the water flow to the reserve tank. The exhausted tank regenerates immediately and then becomes the reserve. This ensures a continuous supply of soft water without the risk of hard water getting into the service flow, making the 9500 Series ideal for feed water pretreatment of commercial and industrial reverse osmosis systems as well as a great system for car washes and small laundry facilities.