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Re: Winterizing the GMC [message #105778 is a reply to message #105777]

Fri, 12 November 2010 10:46

jknezek

Messages: 1057
Registered: December 2007

Karma:

Senior Member

If you had one, I'd assume some PO installed it where it could be reached with relative ease (no sense putting one in if you still have to disassemble the cabinet to get at it). It would most likely be a brass t fitting with a tab on it to move the valve from open to bypass. You should see it very, very close to the water heater in and out flow fittings if there is one. Odds are there isn't one there. Your choice whether to put one in or not. If you are going to blow out the lines real well then you probably don't need one. Drain the water heater, drain the white water tank, open all the taps, open all the drains, blow out the lines (20psi or so), empty the tanks, close up the drains, pour some antifreeze in each sink and some in the tanks through the toilet, call it a year.

I prefer to run the antifreeze through the lines, but that's just a personal choice. I drain my white tank and black tank, then use a bypass to put antifreeze directly into the line in at the pump, pump it through the lines, pour some down each drain and directly into the black at the toilet, and call it a year. I got tired of filling the water heater so now I'm using the bypass. However, the drain for the OEM water heater on the GMC floorplan is an absolute nightmare to get at. Hopefully yours is easier.

Thanks,
Jeremy Knezek
1976 Glenbrook
Birmingham, AL

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[Message index]

		Winterizing the GMC By: MikeT on Mon, 08 November 2010 19:06
		Re: Winterizing the GMC By: rwbmitiopt@comcast.net on Mon, 08 November 2010 19:59
		Re: Winterizing the GMC By: mike miller on Mon, 08 November 2010 20:16
		Re: Winterizing the GMC By: pzerkel on Mon, 08 November 2010 20:49
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		Re: Winterizing the GMC By: WD0AFQ on Mon, 08 November 2010 21:15
		Re: [GMCnet] Winterizing the GMC By: GMCMHRON on Mon, 08 November 2010 21:28
		Re: Winterizing the GMC By: Rick Williams on Tue, 09 November 2010 07:41
		Re: Winterizing the GMC By: Jim Galbavy on Tue, 09 November 2010 13:40
		Re: [GMCnet] Winterizing the GMC By: Jim Miller on Thu, 11 November 2010 12:15
		Re: [GMCnet] Winterizing the GMC By: emerystora on Thu, 11 November 2010 12:30
		Re: [GMCnet] Winterizing the GMC By: ljdavick on Thu, 11 November 2010 12:42
		Re: [GMCnet] Winterizing the GMC By: Jim Miller on Thu, 11 November 2010 13:06
		Re: [GMCnet] Winterizing the GMC By: emerystora on Thu, 11 November 2010 13:52
		Re: [GMCnet] Winterizing the GMC By: emerystora on Thu, 11 November 2010 13:59
		Re: [GMCnet] Winterizing the GMC By: Jim Miller on Thu, 11 November 2010 14:31
		Re: Winterizing the GMC By: Bob Horton on Thu, 11 November 2010 12:51
		Re: Winterizing the GMC By: jknezek on Thu, 11 November 2010 18:33
		Re: Winterizing the GMC By: stick miller on Fri, 12 November 2010 10:08
		Re: Winterizing the GMC By: jknezek on Fri, 12 November 2010 10:28
		Re: Winterizing the GMC By: stick miller on Fri, 12 November 2010 10:34
		Re: Winterizing the GMC By: jknezek on Fri, 12 November 2010 10:46
		Re: Winterizing the GMC By: mike miller on Fri, 12 November 2010 11:02
		Re: Winterizing the GMC By: Don Eddy on Wed, 24 November 2010 22:01
		Re: Winterizing the GMC By: mike miller on Thu, 25 November 2010 04:46
		Re: Winterizing the GMC By: Ken Burton on Thu, 25 November 2010 07:22
		Re: Winterizing the GMC By: Don Eddy on Thu, 25 November 2010 15:47
		Re: [GMCnet] Winterizing the GMC By: Richard Denney on Thu, 25 November 2010 22:09
		Re: Winterizing the GMC By: stick miller on Fri, 12 November 2010 11:03
		Re: [GMCnet] Winterizing the GMC By: Ken Henderson on Fri, 12 November 2010 15:21
		Re: [GMCnet] Winterizing the GMC By: stick miller on Fri, 12 November 2010 17:06
		Re: [GMCnet] Winterizing the GMC By: mike miller on Fri, 12 November 2010 19:41
		Re: [GMCnet] Winterizing the GMC By: Richard Denney on Fri, 19 November 2010 10:00
		Re: [GMCnet] Winterizing the GMC By: emerystora on Fri, 19 November 2010 10:30
		Re: [GMCnet] Winterizing the GMC By: Richard Denney on Mon, 22 November 2010 15:33
		Re: Winterizing the GMC By: Matt Colie on Fri, 12 November 2010 16:19
		Re: Winterizing the GMC By: philipswanson on Sat, 13 November 2010 20:27
		Re: [GMCnet] Winterizing the GMC By: ljdavick on Sun, 14 November 2010 02:21
		Re: Winterizing the GMC By: Matt Colie on Sun, 14 November 2010 07:22

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