Patent ID: 8596293

Claim:
A water appliance comprising: a water flow control unit for controlling a water flow, the control unit including a flow restrictor, and a leakage stop in serial fluid communication with the flow restrictor, with the leakage stop including at least two positions, with a first one of the two positions configured to allow water flow through the leakage stop and a second one of the two positions configured to cut-off the flow when a pressure difference between an inlet and an outlet of the flow restrictor indicates a leakage limit of the flow by being below a predetermined value; a water filter; and a flow totalization unit configured to add up a volume of water that has flowed through the water filter, wherein the water filter is in fluid communication with the flow restrictor for limitation of the water flow to a maximum amount of water that flows in a given period of time through the water filter, the flow totalization unit has a minimal flow below which the flow totalization unit will not add up a volume of water that has flowed through the water filter and the minimal flow is the leakage limit.