Thread Tools Search this Thread Display Modes
Old 10-31-2010, 01:10 PM   #1
2 Rivet Member
Currently Looking...
1990 34.5' Airstream 345
Lewiston , Maine
Join Date: Mar 2010
Posts: 41
Is putting antifreeze in the lines necessary?

I'm in a climate that gets down to 0 at night and up to about 32 in the day.

I just got some help with following the procedure outlined in my 86 345 MH guide for draining all water and putting antifreeze in the drains.

It wasn't a piece of cake as some modifications have been done to the rig since 86. But I think all is done. Batteries are out and stored.

Then there is a section entitled "additional winterizing" in the owner's manual. Since it has already cost me a bit to get this amount done, I'd like opinions on whether or not the next part has to be done too?

Please no wise a&& comments. I know it would be better to do it. I just have a lot on my plate right now with other repairs to the bricks and mortar dwelling.

BTW, blowing out the water was a pain. I just saw the thread on making an adapter. Wish I had seen that first.

gowiththeflo is offline   Reply With Quote
Old 10-31-2010, 02:00 PM   #2
Rivet Master
SteveH's Avatar
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,283
Where I live the trailer does fine with blowing the lines, adding antifreeze to the drains, and running a little A/C heater. However, we see maybe three or four freezes a year, rarely below 15 degrees, and even then only for a few hours.

With your weather, I would do all recommended winterizing.


"To compel a man to subsidize with his taxes the propagation of ideas which he disbelieves and abhors is sinful and tyrannical."-- Thomas Jefferson
SteveH is offline   Reply With Quote
Old 10-31-2010, 02:11 PM   #3
Rivet Master
Wayne&Sam's Avatar
2014 25' Flying Cloud
Cuddebackville , New York
Join Date: May 2007
Posts: 2,663
Images: 21
It gets just as cold here and I don't use antifreeze. I make sure I blow out the lines well with a compressor and haven't had a problem.
Wayne&Sam is offline   Reply With Quote
Old 10-31-2010, 02:37 PM   #4
4 Rivet Member
tkowalyk's Avatar
2013 27' FB Classic
North Wales , Pennsylvania
Join Date: Mar 2007
Posts: 385
Images: 11
I blow out the lines from the city water inlet (IMPORTANT -- set the ait to < 50 PSI) drain all the water and put a 1/2 gallon of anti freeze through the pump bypass. I also put about 4 cups of anti freeze in each drain.
Tom & Lori

2013 27 FB Classic Limited
2016 Nissan XD Turbo Diesel
WBCCI 03288 TAC PA-17
tkowalyk is offline   Reply With Quote
Old 10-31-2010, 03:40 PM   #5
Tramp Streamer
Commercial Member
ArtStream's Avatar
1995 28' Excella
Artist , at Large
Join Date: May 2004
Posts: 2,002
Images: 65
Blog Entries: 1
Thumbs up Popoff

Friends swear by cheap Vodka instead of Antifreeze.

Less toxicMOREFun....and repeat
ArtStream is offline   Reply With Quote
Old 10-31-2010, 03:56 PM   #6
Rivet Master
Aviator's Avatar

1997 34' Limited
1970 27' Overlander
South of Atlanta , Georgia
Join Date: Sep 2009
Posts: 1,626
Images: 2
I live in Georgia, and I use anti-freeze. Last winter we were out camping for the first time with our trailer and we ran out of propane (the gauges in the trailer said we still had 3/4 of a tank). That night the temp dropped to 18f. It stayed at or below 32f for the next four days. The repair bill for our trailer plumbing damage was right at $1000. I now have one of the $1.25 adapters from Camping World to blow out the lines, but for peace of mind I also use ant-freeze.
Craig and Carol
1997 34' Excella 1000
1970 27' Overlander, International
2009 Ford F150 5.4L
ProPride hitch with 1400# bars

AIR 41028
WBCCI 10199
Past President Southeastern Camping Unit (12)
Aviator is offline   Reply With Quote
Old 10-31-2010, 04:03 PM   #7
Rivet Master
InsideOut's Avatar

1956 22' Safari
Vintage Kin Owner
Conifer/Evergreen , Colorado
Join Date: Feb 2002
Posts: 11,740
Images: 97
We do...

IMO it's cheap insurance.

Our routine is...

Vintage Airstream Club - Past President 2007/2008
WBCCI #1824 - DenCO Unit Past President (2005)
AIR #30 - Join Date: 2-25-2002

RMVAC | WBCCI DenCO Unit | Sisters on the Fly | Tin Can Tourists
BIRDY - our 1956 Safari | 1964 Serro Scotty
InsideOut is offline   Reply With Quote
Old 10-31-2010, 04:09 PM   #8
Rivet Master
AirsDream's Avatar
1999 23' Safari
Perrysburg , Ann Arbor
Join Date: Sep 2005
Posts: 914
MoHo may be different, but on my A/S trailer, I too blow out the lines using a little adapter I got at Camping World or somewhere. And I catch the water I blow out in plastic jugs, so it doesn't wind up in the tank(s). Then I put something over a gallon of antifreeze through the lines by hooking a hose to the suction side of the water pump, turn on pump, open valves and catch the outflow again - same reason. The important part is that I still get quite a bit of water coming out of each outlet before the antifreeze finally gets there! And I'm careful not to forget the sink spray hose and the shower head. Then I pour a couple of cups down each drain, a half galllon or so in each of the holding tanks (just in case there was a little water left in there after I drained them and to keep the drain seals from drying out), and finish off with a cup or two in the toilet bowl just to keep its seal moist.

So: my take - you are a test pilot ... you don't NEED to do anything more, so long as you're prepared for the possibility of damage. But also, it's possible that a MoHo drains better / differently from my trailer. I don't know enough to be certain on this, but you get to be the judge of the results come springtime.

It'd be swell if you decide not to do more, if you'd report in the spring whether it worked o.k. or not. Than others can learn from your experience. Good luck either way.
AirsDream is offline   Reply With Quote
Old 10-31-2010, 08:10 PM   #9
Rivet Master
dznf0g's Avatar

2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 8,196
Many years ago, I just blew out the lines and put antifreeze in the drain traps...enough to dilute any remaining water in the gray and black tanks. This is fine for ensuring that lines won't burst, but one year, apparently a drop or two remained "hanging" in the plastic faucet cartridges. We had a really long and very cold snap and in the spring I had two faucets which wouldn't shut off completely. (dripped profusely) Upon disassembly, it was apparent they had frozen and cracked.

Ever since, I blow the lines and fill with antifreeze. Cheap insurance, IMHO.
dznf0g is online now   Reply With Quote
Old 10-31-2010, 08:25 PM   #10
4 Rivet Member
B4WEDI's Avatar
2006 19' Safari SE
Nawthin' , Hemisphere
Join Date: Dec 2006
Posts: 273
Images: 2
Thumbs down "no wise a&& comments" *** HUH *** ?

Originally Posted by gowiththeflo View Post
Please no wise a&& comments.
Well, ya sure took the fun out of this thread !

We aren't that far south of you and for 6 bux and a little effort, I wouldn't take the chance not doing it knowing how I would feel in the Spring when I open things up and found a leak or two or three somewhere behind everything when I connected the H2O.....

If you don't have the time to do it now, how will you ever find the time to correct the boo-boo later ?

Good Luck with your decision !

T & K

T & K

B4WEDI is offline   Reply With Quote
Old 10-31-2010, 10:44 PM   #11
Rivet Master
FreshAir's Avatar

1966 24' Tradewind
Placerville , California
Join Date: Apr 2006
Posts: 3,327
Images: 2
In addition to blowing out the water lines and running 6 bucks worth of pink anti freeze I open and leave open any cabinet, closet and storage (interior) lockers that have water lines running through. It does stay cold in those closed off areas. A small heater just enough to take the chill off the coach interior on days that have hard freezes works for me.

Neil and Lynn Holman
FreshAir #12407

Kirk Creek, Big Sur, Ca. coast.

1966 Trade Wind

1971 Buick Centurion convertible
455 cid

1969 Oldsmobile Ninety Eight
455 cid
FreshAir 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
Antifreeze through pump- how to.. crazylev Winterizing, Storage, Carports & Covers 20 01-22-2014 12:31 PM
What do you do with your old RV antifreeze? Lumatic Fresh Water Systems 4 03-24-2009 08:03 AM
How Long Will Antifreeze Last? montanaandy Winterizing, Storage, Carports & Covers 13 08-22-2008 07:37 PM
Antifreeze question jcf48 Winterizing, Storage, Carports & Covers 15 11-01-2006 07:32 AM
Freezing RV Antifreeze Raptorrider2001 Winterizing, Storage, Carports & Covers 1 01-13-2003 01:33 PM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:47 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.