I disconnected both lines at the valve. With the input line pointed away from the coach I bumped the pump a couple of times until pink stuff came out. I blew on the output (line from valve to ice maker) line a few seconds. Reconnected the lines & let the ice maker go through one cycle & then raised the wire bar in the ice maker turning it off.
2011 Itasca Suncruiser, Jeep Grand Cherokee toad
MSgt retired USAF 1988, AA retired 2005