The combination of up-flow regeneration and HV resin also means that incredible efficiencies can be obtained. The Citymaster PRO can regenerate using as little as 21 gallons of water and 3 pounds of salt achieving a Softener Efficiency Rating (SER) of 5,000 grains per pound of salt used.
The Citymaster Pro softener is designed with the do-it-yourselfer in mind: