Gas Turbine Compressor Water Wash System

A water wash system for use with a compressor (120) of a gas turbine engine (110). The water wash system may include a number of spray nozzles (280) in communication with the compressor (120), a heat recovery steam generator (150), a flow of heating water (160) from the heat recovery steam generator (150), and a tap off line (310) in communication with the flow of heating water (160) and the spray nozzles (280) so as to deliver the flow of heating water (160) to the compressor (120). A corresponding method for operating a water wash system (250).