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Old 11-02-2022, 09:08 AM   #1
Junior Member
Join Date: Nov 2021
Posts: 15
Winterizing a 2003 Newmar

I have a 2003 Newmar Scottsdale, is it possible to winterize myself? My service department wants $200 for what I would think is a relatively simple water draining exercise. However I don't know where or how those water valves are, and the service folks did say there was one that is harder to get to.

Any suggestions or instructions for winterizing the older Newmar?

Appreciate any input!

Sammamish, WA
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Old 11-02-2022, 06:49 PM   #2
Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,330
Yes, winterizing is pretty easy.
Use Search for any question you have because that one has been answered a zillion times.
Get 5 gallons of RV antifreeze next time you are out.
Best is to first use 45 psi of compressed air (do you have a compressor?) followed by having the fresh water pump pull antifreeze from the jug and then pressurize the system with antifreeze that you then open all spigots, ice maker, washing machine, front water line, etc until all are spraying antifreeze.
Absolute most critical is the water heater. expensive to fix. depends on what type you have on how.
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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Old 11-03-2022, 09:44 AM   #3
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Join Date: Sep 2012
Posts: 104
Do your research and decide if you can be 100% sure you did it correctly, it's not difficult but you don't want to miss anything. If you get it wrong $200 will seem cheap.
Sealyn is offline   Reply With Quote

newmar, winter, winterizing

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