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Re: Winterizing the GMC [message #105776 is a reply to message #105774] Fri, 12 November 2010 10:28 Go to previous messageGo to previous message
jknezek is currently offline  jknezek   United States
Messages: 1057
Registered: December 2007
Karma:
Senior Member
The water heater bypass is for winterizing the coach so you don't end up filling the hot water tank with anti-freeze. You drain the tank and then use the bypass to simply run the antifreeze through the water lines which saves several gallons of anti-freeze every year. The bypasses are cheap and they connect to the incoming cold line and the outgoing hot line with a ball valve that allows you to change the water direction from entering the tank on cold, filling the tank, and exiting on hot. Now it just goes cold line before the heater up the bypass line, to the hot line after water would normally exit the heater tank. It has nothing to do with the engine heat lines (although I have those blocked off as well since I didn't feel like re-doing the lines for my rarely used hot water heater...)

Thanks,
Jeremy Knezek
1976 Glenbrook
Birmingham, AL
 
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