GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Winterizing the GMC
Re: Winterizing the GMC [message #105688 is a reply to message #105467] Thu, 11 November 2010 12:51 Go to previous messageGo to previous message
Bob Horton is currently offline  Bob Horton   Canada
Messages: 81
Registered: December 2005
Location: Brandon, Manitoba, Canada
Karma:
Member
I’ve been draining RV’s for winter on and off for 40 some years and have been fortunate to never have had any winter damage from lines freezing. I live in Manitoba which, with the possible exception of Siberia, is as cold as it gets anywhere.

After I drain my tanks I remove the spout from the kitchen sink and hook up a small, tankless,low-pressure oilless compressor. I stick a hose which just fits nicely into the spout hole and let the compressor run. Opening up the kitchen faucets one at a time I blow the air out of each hot and cold line by opening the bathroom, shower, and toilet valves. I just let it run as long as it takes to remove any trace of moisture from the lines.

Lastly I add a cup or so of plumbing antifreeze to each trap (don’t forget the one on the bathroom floor). and to the toilet. Leaving a quart or so in the holding tank is also a good idea.

A couple of handy things I learned off the web: Give a shot of air to the outside city water connection and lower the coach when draining the holding tank.

Years back I tried adding antifreeze to the water tank but it seemed to take forever to get the stuff out in the spring – and I have found that if you ensure that the last vestige of water is out of the system it’s not necessary.
Works for me

Bob Horton
75 Glenbrook
Brandon, Manitoba
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Mech. Engineer Q.
Next Topic: GEMRECS PARTS SALE
Goto Forum:
  


Current Time: Sat Sep 28 11:57:52 CDT 2024

Total time taken to generate the page: 0.01278 seconds