If your Sears softener is a demand system, set the hardness for the total compensated hardness level of your water. The system does not need to be “fooled” ie:setting the capacity, in order to operate properly. The computer will atoumatically adjust the salt doseage according to the amount of resin that needs to be regenerated. This will vary according to your water consumtion. This is how these systems can achieve higher salt efficiencies than the Fleck valves and still maintain soft clean water.