A water control fixture having an operating valve and a thermostatically controlled bypass valve disposed in the fixture for bypassing water away from the fixture until the water temperature reaches a desired level. When pressurized water from the hot water heater reaches the desired temperature level...http://www.google.de/patents/US20050242198?utm_source=gb-gplus-sharePatent US20050242198 - Water circulating system having thermostatically controlled bypass valve
