Thread Tools Search this Thread Display Modes
Old 11-02-2014, 10:05 AM   #1
Winnebago Camper
Join Date: Nov 2014
Location: Bayfield, CO
Posts: 17
Question Newb and Waaaay Ignorant

So, just bought a new Winnebago Sightseer 30A. I live in Southwest Colorado, where it gets very cold (as in very cold TOMORROW). I need to get this rig winterized ASAP. The owners manual lists two methods: draining the water system and blowing out the lines OR adding potable anti-freeze to the system. The anti-freeze process seems quicker and easier. Any feed back on which process is better (if either) would be greatly appreciated. Also, any other hints regarding winterization/long term storage would be helpful. Thanks in advance, everyone!

Happy cruising!
Greg & Cindy
Bayfield, CO
2015 Sightseer 30A
mtnfan is offline   Reply With Quote
Old 11-02-2014, 10:57 AM   #2
Winnebago Master
Join Date: Jun 2003
Location: Palisade CO
Posts: 895
I just winterized mine for the first time (we full timed for 11 years and snow birded for one year).
I drained the fresh water tank.
I moved the diverter valve on the back of the water heater to the bypass position, drained and flushed it with a flushing tool I got at an RV store.
I took the cap off the clear hose in the water pump compartment and put the end in a gallon of RV antifreeze. I turned the diverter valve so the pump would suck antifreeze from the jug.
Turned the pump on and opened the cold water faucet farthest from the pump, when I saw the red antifreeze coming out then I closed it and switched to the hot water faucet. Did that for all faucets including the outside shower.
I dumped antifreeze in all the traps making sure quite a bit got into the gray tank. Then dumped some in the black tank via the toilet. Left a lot in the bowl and covered the bowl with cling wrap so it wouldn't evaporate.

Took four gallons to do the job. Hope I didn't forget anything.
Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
Clay L is offline   Reply With Quote
Old 11-02-2014, 11:06 AM   #3
Winnebago Owner
Pepper2's Avatar
Join Date: Nov 2011
Location: Southeast,MI
Posts: 126
Actually, you should do both in my opinion. I take the easy/safe route. I take it in to the dealer to have it winterized. Cost $80 to winterize/de-winterize the system and if there is an issue with the system in the spring the repair is their responsibilty. And welcome to the site.
Neal and Deb + Mya and Gizmo, the pup's
2003 Winnebago Sightseer 30B

May the roads rise up to meet you, May the winds be always at your back...
Pepper2 is offline   Reply With Quote
Old 11-02-2014, 11:12 AM   #4
Winnebago Watcher
Join Date: Oct 2010
Posts: 3
Walmart has a very good and in expensive RV anti-freeze for about 5 bucks a gallon and I just switch the bypass on the water-heater, Drain the tank from the outside (I think it's a 1" nut... I use an extended ratchet socket to get at it. I let it drain, get some plumbers tape put the nut back in. There should be a tube in the RV that you just stick in the gallon of Anti freeze, turn a valve (under our bathroom sink for the hose and valve) turn on the water pump .. go to each outlet and run the faucet until you get pink... get them all done, take the left over and pour it in the sink traps.... your done... it's about 1/2 hour job once you do it a couple of times.
davidki is offline   Reply With Quote
Old 11-02-2014, 11:17 AM   #5
Winnebago Master
"007"'s Avatar
Join Date: Oct 2004
Posts: 629
Here is some info of the favorite topic for this time of the year.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans, now in good hands
"007" is offline   Reply With Quote
Old 11-02-2014, 01:25 PM   #6
Winnebago Camper
LEHAFER's Avatar
Join Date: Mar 2010
Location: Charlton, Ma
Posts: 49
Don't forget the shower drain trap, the outside shower valve or the icemaker.
LEHAFER is offline   Reply With Quote
Old 11-02-2014, 01:42 PM   #7
Site Team
TDI-Minnie's Avatar
Join Date: Sep 2013
Posts: 439
See my post about winterizing a page or two down this forum.
I did a writeup on how-to with pictures that may be helpful. Granted, it's for out Winnebago trailer, but many of the systems should be similar.
Manny and Larissa
2013 Winnebago 2301BH-Red
2012 Ram 2500 Megacab HO CTD
TDI-Minnie is offline   Reply With Quote
Old 11-02-2014, 03:31 PM   #8
Winnebago Owner
Join Date: Oct 2012
Location: Le Claire, Iowa
Posts: 169
My Winnebago Owners books have a very good step by step instructions for winterizing the system. You might want to look over yours to get an idea on how to proceed.
ghutch is offline   Reply With Quote
Old 11-02-2014, 04:29 PM   #9
Winnebago Camper
sirpurrcival's Avatar
Join Date: Apr 2010
Posts: 14
Basically I do both (blow out hoses and then pump in antifreeze). The latter is important for all the nooks an crannies in both your fresh water system and the drain elbows. Blowing out cannot get out all of the water and it will collect. Also, it doesn't touch the drains at all. You can bypass the Hot Water heater to avoid putting in a bunch of antifreeze.

Leave antifreeze in your sinks and toilet and showers to keep the rubber seals moist

If you have an ice maker, be sure to find the water hose for that too and drain it. Also don't forget that outside shower in the water bay if you have one. Push some antifreeze through it too.
1999 - National Tropi Cal
sirpurrcival is offline   Reply With Quote
Old 11-02-2014, 04:56 PM   #10
ChasA's Avatar
Join Date: Mar 2007
Location: Apex, NC
Posts: 449
If you just bought it, wasn't it already winterized?
2010 Winnebago Journey Express 34Y
2010 Freightliner XCS (mfd 9/'09)
'07 Saturn Vue V6
ChasA is offline   Reply With Quote
Old 11-04-2014, 03:59 PM   #11
Winnebago Owner
Join Date: Oct 2013
Posts: 141
I also do both-blow out and antifreeze. I blow out the system with the water heater bypass open after I drain the water heater tank with the faucets closed at first as I wasn't sure the line from the valve to the tank drained and I wanted that blown out since antifreeze won't get to it. I then close the bypass and blow out the internal lines by opening all faucets-hot and cold-including external shower and toilet. I also turn city fill on for a sec to blow out that feed. Then open the winterizing valve and insert tube in antifreeze and turn on pump with faucets open one at a time from the farthest to the nearest until pink stuff comes out. Add antifreeze to all traps and toilet and done. 1/2 hour sounds about right and I used under two gallons of antifreeze. Don't forget to put plug back in hot water heater-don't want critters in there. Of course water and holding tanks were drained also.
Allen & Linda; 2012 Winnebago Vista 30T, Ford 6.8 V-10, Safety-Steer, Roadmaster front and rear sway bars, 5-star tune
jazzerjump is offline   Reply With Quote
Old 11-04-2014, 04:03 PM   #12
Winnebago Owner
Join Date: Oct 2013
Posts: 141
Forgot to add-I use a small 3 gallon compressor with pressure set at about 25 PSI-don't want to blow out any lines. I have a larger compressor but keep the small one on the coach to air up tires, etc. and blow out the lines on the way back from the dessert to Idaho cold. Have to let is recycle some but still convenient.
Allen & Linda; 2012 Winnebago Vista 30T, Ford 6.8 V-10, Safety-Steer, Roadmaster front and rear sway bars, 5-star tune
jazzerjump is offline   Reply With Quote
Old 11-04-2014, 04:36 PM   #13
Winnebago Camper
TexasTom's Avatar
Join Date: Jul 2013
Location: DFW
Posts: 10
Originally Posted by LEHAFER View Post
Don't forget the shower drain trap

Oh I lucky!
TexasTom is offline   Reply With Quote
Old 11-04-2014, 05:50 PM   #14
Winnebago Owner
Join Date: Aug 2012
Posts: 87
Leave the drain plug out of the water heater.
John and Susan. New 2016 Chevrolet 2500 2 WHD . 6.0 Gas.Extenda Cab Short, Bed W/Topper. 2017 Grand Design 297 RSTS. Our rescue dog Annie. Still ,Full timing since 07-01-2011. No sticks and bricks.
poppopc is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
A Shame to be so old and so ignorant Flyflicker Winnebago General Discussions 12 04-13-2011 04:13 PM
First dumb question from NEWB pameridan04 Winnebago General Discussions 13 03-16-2010 05:11 PM
2nd Dumb Question Newb pameridan04 Electrical | Charging, Solar and Electronics 15 03-13-2010 03:51 PM

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:57 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.