Water conditioners with clock-type control systems regenerate according to a fixed time schedule, regardless of how much water is actually used in the home. Other meter-type systems regenerate after a fixed amount of water has passed through the meter. The Elite II doesn’t operate on a fixed time or water volume basis. Instead, it continually monitors how much soft water your family actually uses day-to-day, and then adjusts the reserve capacity to meet your actual needs. As a result, the reserve is kept at a minimum for optimum efficiency. Those who have frequent house guests, travel frequently, or live with teenagers would see the most benefits from the Elite Meter II water conditioning system.