Patent ID: 8641383

Claim:
A method of controlling a pump in a system including at least one faucet, the method comprising: sensing a pressure in the pump; determining whether the at least one faucet downstream from the pump is open enough to require one of high flow and low flow through the at least one faucet based on the sensed pressure in the pump; entering a low-flow mode when the sensed pressure in the pump is greater than a low pressure threshold, indicating low flow demand by the at least one faucet, the low-flow mode including operations specific to low flow conditions of the pump; reducing power to the pump, when the sensed pressure is greater than a shut-off pressure during the low-flow mode and the at least one faucet is still open and demanding flow, until the sensed pressure is less than the shut-off pressure in order to prevent the pump from being shut down during low flow demands; and turning the pump off when in the low-flow mode the sensed pressure is greater than the shut-off pressure and the at least one faucet is closed and no longer demanding flow.