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Old 05-29-2015, 12:10 PM   #15
Rivet Master
1996 25' Excella
Tillsonburg , Ontario
Join Date: Aug 2014
Posts: 589
The main thing I would be checking is weather you have a ton of 'stuff' in the trailer all the time. Then an extra 500 lbs of water might be taking you to the limit. If you start out with full water and empty holding tanks then the same weight will be distributed from water to holding tanks, so net zero effect other than where the weight is now located (in front of the axles?). If however you refill with water then you could theoretically have 1000 lbs of water weight! That I think is obviously a problem.

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Old 05-29-2015, 12:14 PM   #16
Regular Guy
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1978 31' Sovereign
Hot Springs , Arkansas
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Posts: 556
Full water tank, Empty Main and Aux tank, and don't worry about it.

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Old 05-29-2015, 05:54 PM   #17
Dan and Lynda
2012 28' International
Bremerton , Washington
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I almost always pull with the fresh water tank full. Some say you get better fuel economy with an empty tank. Well the math is a 28' International weighs about 8000 lbs fully loaded. The fresh water tank is 39 gal at 8.7 lbs per gal, that means a difference of 340 lbs between full and empty. It wont make a difference full or empty. As for weight, it rides better with a full fresh tank and you have water when you need it. The axels are rated for much more than what the trailer weighs.
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Old 05-29-2015, 06:01 PM   #18
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He's a restorer and probably is aware of the older Airstreams that had issues with the frame near the rear bath of those trailers. Those models when carrying water could develop cracks in the frame. Airstream has a fix for that specific problem which is also called tail end droop.

The new trailers are engineered to carry a specific amount of weight on the axles and your tanks most likely sit over the axles which is perfect for weight distribution. Full tanks alone will not stress your axles. They are engineered for that weight.

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AIR #56
'04 Classic 30' S.O.,'03 GMC Savana 2500,'14 Honda CTX 700
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Old 05-29-2015, 06:01 PM   #19
Overland Adventurer
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1991 34' Excella
2009 34' Panamerica
Telluride , Colorado
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Quack! Airstream builds our ships to be towed with full tanks! They tow better, and are engineered to do so!
You'd better look for a more sound source of info and leave that "restorer" alone!
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Old 05-29-2015, 06:27 PM   #20
Rivet Master
1976 31' Sovereign
Oswego , Illinois
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On my 1976 31 AS water tank sits spanning both axles so no prob. of weight. In my opinion floor rot is caused by fiberglass insulation between frame and sides. One cause is lower belt line covers bannana wrap and sides joint. Sides go under wrap huge area to funnel water into insulation gets wet floor rots. My water heater drains on to floor then into wraps. floor rotted small portion in closet, insulation was wet many mos. after draining heater. Any leaks fiberglass gets wet will not dry. In my opinion insulation is not needed in this portion of floor
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Old 05-29-2015, 06:44 PM   #21
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Twin Rocks , Oregon
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Originally Posted by interstateflyer View Post
I was told recently by a travel trailer restorer that I should avoid towing with the tanks full on my 2014 23D. He said that I could damage my axles and that Airstream warns owners about the potential.

I find the need to travel with a full water tank when dry camping and a partially filled water and full waste tanks until we reach a dump station.

Is there any truth to this concern? What have you experienced?
If you ever need any work done on your trailer, I would not put the restorer who told you this at the top of the list.
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Old 05-29-2015, 07:06 PM   #22
Rivet Master
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2016 25' Flying Cloud
Venice , Florida
Join Date: Apr 2015
Posts: 867
If you're pulling with the proper TV, tanks don't matter, full or empty. When you're pulling with a wimpy TV, that is underrated & insufficient regardless of who set it up, but you think it's ok, well, beware!
I see these on the Interstate & I really don't care about your safety but it gives me pause because you are jeopardizing mine. If you can afford the Airstream do the right thing & buy a truck & stop work worrying about what's in your tanks.
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Old 05-29-2015, 08:52 PM   #23
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1999 34' Excella
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Round Rock , Texas
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Full fresh... Empty gray, a couple gallons in the black to keep "things" fluid and flowing... Water is the best solvent!
Peace and Blessings..
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Old 05-31-2015, 12:52 AM   #24
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2017 25' International
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Originally Posted by AtomicNo13 View Post
Quack! Airstream builds our ships to be towed with full tanks! They tow better, and are engineered to do so!
You'd better look for a more sound source of info and leave that "restorer" alone!
He mentioned it in passing. I thinks I've found more than enough validation that towing with a full water tanks is not only OK but beneficial. Thanks everyone.
2017 Airstream International Serenity 25FB
2016 RAM 2500 Crew Cab Cummins 6.7 Diesel
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Old 06-01-2015, 07:01 PM   #25
Rivet Master
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2014 30' Classic
2015 23' International
2013 25' FB International
Apache Junction , Arizona
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It was suggested to me in the beginning to put about 4 to 5 gallons of water in each of the gray and black tanks along with the Eco Smart holding tank additive after each dumping. The sloshing from water movement when under way keeps "stuff" moving in the tanks.

We refill the fresh tank before departure so the tires are not supporting as much dead weight while in storage.
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TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell

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Old 06-01-2015, 07:27 PM   #26
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1977 27' Overlander
Trotwood , Ohio
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WE have always towed our 77 with full fresh water tank. No aware of any damage. Although because of the BIG C we have not towed in two seasons but hope to get back at it this summer.

Roger & MaryLou
7.3 liter Power Stroke Diesel
1977 27ft OVERLANDER
AIR # 22336 TAC- OH-7
May your roads be straight and smooth and may you always have a tailwind!
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