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Old 04-03-2014, 08:44 AM   #1
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Location: Grand Rapids, Mi
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Dewinterizing 21RS

Hi all
Just bought a 2009 21RS Roo and need to dewinterize. Can anyone point me to a link or a list somewhere that gives a step by step procedure for dewinterizing this vehicle? Don't see many 21RS s in the guess is that the dewinterizing process is pretty generic for many RVs, but so is a pilot's preflight checklist, and, like an aviator, I sure don't want to screw up preflight. My passengers would never forgive me.
Also, a shout out to other 21RS owners...would like to hear from you about your overall experiences with this model and any tips or tricks for trailering with it...
Thanks...this is a wonderful resource!

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Old 04-03-2014, 10:57 AM   #2
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Basically just rub water through the system for a while. How long you do that for is up to you. Some run 2 full tanks, some run 1. You can also use the opportunity to sanitize the water system.

You might get more help in the Hybrid part of this forum.


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Old 04-05-2014, 12:02 PM   #3
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I agree with running water through the lines to flush them clean. Might add be sure you open the water heater bypass to prevent burning out your heating element before you power up your trailer. Safe towing!
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Old 04-06-2014, 09:38 AM   #4
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Originally Posted by Jmjtx View Post
Might add be sure you open the water heater bypass to prevent burning out your heating element before you power up your trailer.
Oh brother, yes! Drain everything first using low point drains then turn the bypass back to operating position.

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winter, winterize

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