Thread Tools Display Modes
Old 09-04-2013, 12:09 AM   #1
Junior Member
Join Date: Jul 2013
Posts: 19
Driving with a full tank

So I haven't tried it yet but would it be safe to drive with a full tank of water? I'm headed out to an area with no water next weekend and it would be nice to fill up at home before I head out.

Long Hual is offline   Reply With Quote
Old 09-04-2013, 12:20 AM   #2
Fulltime family RVer
ependydad's Avatar
Join Date: Nov 2011
Posts: 16,665
In general, yes.

There have been a few reports of the supports holding the tanks in place not being beefy enough to support the weight of the filled tank (remember, water is 8 pounds per gallon). But, they're far enough between that I'm comfortable doing it. (Though, I only ever fill to 1/2 - 2/3 of a tank because I have never dry camped in the camper.)

2012 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is online now   Reply With Quote
Old 09-04-2013, 12:30 AM   #3
Senior Member
Join Date: Apr 2011
Location: Coquitlam, BC
Posts: 165
That's what the tank is there for. Fill it and go! I do it all the time. As ependydad also mentions, the issues with broken mounts are too few and far between to worry about them IMHO.

A 30 Gal tank holds 250 lbs of water when full. Depending on where your tank is located, your tongue weight may change a bit, but as long as you've got a decent setup it shouldn't make too much of an impact.
SCOC is offline   Reply With Quote
Old 09-04-2013, 01:57 AM   #4
Site Team
bikendan's Avatar
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 14,448
do almost every time we go camping, for nearly 7 years now.
not sure why you'd think it's not safe? unless you have a marginal tow vehicle.

why would all RV manufacturers install large FW tanks if it wasn't safe to transport them full?
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is offline   Reply With Quote
Old 09-04-2013, 06:21 AM   #5
Site Team
KyDan's Avatar
Join Date: Mar 2008
Location: Louisville, KY
Posts: 7,121
Someone reported here that their tank was in the very back end. That's rare but it made the tongue end light with the tank was completely full. If your
tank is in the middle or front end you should be OK.
I also do it when necessary. Some dry camping CGs will have a spigot
somewhere and I fill up when I get there if I know that is available.
If in doubt I fill up at home too.

Dan & Rita D
2017 Nissan Titan 5.6L King cab 4wd
1999 Suzuki Intruder Motorcycle
Blue Ox WD hitch

Camping days 2010-53, 2011-47, 2012-41,
2013-41, 2014-31, 2015-40, 2016-44, 2017-63, 2018-30
KyDan is offline   Reply With Quote
Old 09-04-2013, 06:26 AM   #6
Senior Member
rattleNsmoke's Avatar
Join Date: Oct 2012
Location: Western Connecticut
Posts: 1,579
We noticed the fiver behaved a lil' differently with 1/3-1/2 tank of water. It chucked more while driving. I figure it was the water sloshing around. You'll burn more fuel hauling more weight around. If it were me, I'd try and find fresh, potable water and fill up near my destination.
2010 Cedar Creek 5th Wheel 34SATS "The Beast"
2006 Ford F350 Lariat 6.0L Diesel
2003 Harley Heritage Softail "Hogzilla"
1986 Marriage to "Wifey" (patience of a saint)
rattleNsmoke is offline   Reply With Quote
Old 09-04-2013, 06:37 AM   #7
Phat Phrog Stunt Team
TURBS's Avatar
Join Date: Aug 2011
Location: Iowa
Posts: 34,423
In my case if I need to bring water I try to get water closer.
As I have 42 gallon fw capacity plus 10 gallon water heater which adds 433 additional pounds!

Not yet have I not found water closer.
In almost every scenario the cg had fw upon entering.

TURBS is offline   Reply With Quote
Old 09-04-2013, 06:51 AM   #8
Junior Member
Join Date: Jul 2013
Posts: 19
Thanks for the info, I thought maybe it would be extra hard on the tank straps and wear out faster.
Long Hual is offline   Reply With Quote
Old 09-04-2013, 07:11 AM   #9
Senior Member
Join Date: Dec 2012
Location: Windsor, Ontario, Canada
Posts: 642
If we are going boon-docking then our 60 gallon tank will be full to travel with. When traveling then we put in about a 1/3 of a tank for pit stops between campgrounds. When we had a toyhauler it was filled with 110 gallons of water. No problems......yet, while knocking on my head.
Pipeman is offline   Reply With Quote
Old 09-04-2013, 07:14 AM   #10
Senior Member
avolnek's Avatar
Join Date: Jun 2013
Location: Nebraska
Posts: 630
Something else to consider is if the tank is not completely full the water will be sloshing around. That means the weight of the water is jarring itself back and forth inside the tank. Doing this can cause damage to the tank, straps and sensors. Also if the water is sloshing it's weight back and forth as you slow and accelerate that will be a force that can work its way to the TV. Though in some scenarios this may not be severe, others it may. As for Epedydad's, knowing he pulls a BIG 5er with a dually the (guessing) 20-30 gallons of his half tank of water isn't going to play much into that as everything else around it is so large and heavy! Lighter rigs will notice this affect more so.


TV- 2015 Ram 2500 CCLB 6.7 Cummins 3.42 gears
Camper - 2015 Saber 322BHTS
avolnek is offline   Reply With Quote


Thread Tools
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

» Featured Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:09 PM.