Patent ID: 8163096
Filing Date: 2012-04-24
Classification: B60S

Abstract:
1. A method of supplying hot water to a spray device of a vehicle wash system of the type including a source of hot water at a first location, a spray device at a second location remote from the first location, conduit means interconnecting the source and the spray device, and a selector valve assembly in the conduit means proximate the spray device wherein the method comprises; sensing the arrival of a vehicle at a wash area of the wash system and generating a signal representing such arrival; using the signal to start the flow of wafer from the source to the valve assembly; recirculating water from the valve assembly back to the source while preventing the flow of water from the valve assembly to the spray means for a period of time after said signal is generated; and, thereafter, using the selector valve assembly, stopping the recirculation of water back to the source while supplying water to the spray means.