Abstract text

A water economizer (1) to be mounted on a tap spout through which water flows at an adjusted flow-rate when the tape is open, includes a flow-rate reduction or interruption mechanical device, a water inlet pipe (5) fitted on the tap spout, an outlet pipe (7) for discharging the water out of the economizer, the inlet and outlet pipes defining a flow axis (9). The economizer includes a pulse control device for reducing or interrupting the water flow when the tap is open and when a first pulse is applied from the top to the bottom on the outlet pipe along the flow axis, and for restoring the initially adjusted water flow when a second pulse similar to the first pulse is applied from the top to the bottom on the outlet pipe. The comfort of the device advantageously makes it attractive to use and efficient against water waste.