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Home » Public Forums » GMCnet » [GMCnet] Winterizing a GM interior GMC. No water heater shut off valve?
[GMCnet] Winterizing a GM interior GMC. No water heater shut off valve? [message #338539] Thu, 08 November 2018 20:48 Go to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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Senior Member
Never have winterized one of these. My Royales have had one of these valves at the water heater. I blew it out days ago. But needed to get anti freeze in the water pump. So I put a hose on the pump intake. Put the other end in a gallon of anti freeze. Seems that all the anti freeze is going into the water heater. The system is now protected. But would like to have seen the anti freeze at the faucets. Snow tonight. 15 degrees tomorrow night. Started to cool down. Bob Dunahugh
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