The automated gray water system comprises a three port diverter valve and a wireless switch controller. The three port diverter diverts gray water collected within a building from a first port to a second port when an internal mechanism of the valve is in a first valve position and from the first port to a third port when the internal mechanism of the value is in a second valve position. In the first valve position, gray water is passed to a water purification and/or storage system and may be used as a non-potable resource. As a non-limiting example, the gray water may be used for landscape irrigation. In the second valve position, the gray water is passed to a public sewer system or septic system. The position of the valve may be controlled from a smart device via a wireless link to the wireless switch controller.
