Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > CAMPING, TRAVEL and TRIP PLANNING > Boondocking
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-28-2023, 10:52 AM   #1
Junior Member
 
EmmyLo's Avatar
 
Jayco Owners Club
Join Date: Oct 2019
Posts: 8
Question Drive with full water tanks or not

Hello,

We will be pulling our 36' 5th wheel with our Silverado 3500HD from Coulee City to Spokane, both in Washington State, in the next couple of weeks. We are staying at Steamboat Rock State park for a few days then moving on to Riverside State Park - Bowl and Pitcher. The water will not be turned on at our campsite yet at Bowl and Pitcher so we're going to need to fill up before we arrive. We could fill our tanks at Steamboat Rock and drive 2.5 hours to our destination or fill up closer to the second park. We have never driven with full tanks and don't know how it will affect our mileage. Should we fill up before we leave or wait until we get closer to Spokane? If waiting is better, where can we get potable water?
EmmyLo is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-28-2023, 11:06 AM   #2
Senior Member
 
MRUSA14's Avatar
 
Entegra Owners Club
Join Date: Nov 2012
Posts: 7,890
For a short drive like that, I doubt the effect on your fuel usage will be significant. I would fill the water tank wherever it is convenient.
__________________
Marc and Jill, Wellington FL
2013 Entegra Anthem 44SL
2018 Lincoln MKX
MRUSA14 is offline   Reply With Quote
Old 03-28-2023, 11:23 AM   #3
Senior Member
 
Old-Biscuit's Avatar
 
Join Date: Nov 2015
Posts: 24,756
We ALWAYS travel with a FULL Fresh water tank.....ALWAYS!

Great for lunch stops/bathroom breaks AND knowing you will have water upon arrival at destination.
*Destination might not have water, might not have water on, might have water main breakage etc etc

ALWAYS travel with full fresh water tank!

Weight of full tank will have little to no effect on MPG
Wind resistance has more effect
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is online now   Reply With Quote
Old 03-28-2023, 11:40 AM   #4
Senior Member
 
Olyteddy's Avatar
 
Join Date: Jul 2022
Posts: 211
Since 50 gallons of water weighs about 400 pounds be sure to include that weight in your towing calculations though.
__________________
1999 Fleetwood Southwind 35S - F-53 chassis (formerly Model T) - V10
Olyteddy is online now   Reply With Quote
Old 03-28-2023, 11:43 AM   #5
Senior Member
 
Join Date: Jul 2014
Posts: 33,272
Quote:
Originally Posted by Olyteddy View Post
Since 50 gallons of water weighs about 400 pounds be sure to include that weight in your towing calculations though.
So does 2 grandchildren and therr bags, are you leaving them behind.
twinboat is offline   Reply With Quote
Old 03-28-2023, 11:45 AM   #6
Junior Member
 
EmmyLo's Avatar
 
Jayco Owners Club
Join Date: Oct 2019
Posts: 8
Thanks for the replies. We'll be sure to leave with a full tank.
__________________
Bob & Mary Ellen
2020 Jayco Pinnacle 32RLTS
2019 Silverado 3500HD
EmmyLo is offline   Reply With Quote
Old 03-28-2023, 12:24 PM   #7
Senior Member
 
Join Date: Apr 2022
Posts: 205
Note that I am not disagreeing with the sentiment of traveling with full tanks. But not all tanks are supported as well as others and there have been some folks who traveled with full tanks who had the tank(s) fall out of the trailer while traveling. I don't know how common it is (I have never had it happen myself), but it is something to check on. Based on my own experience only, I am comfortable traveling that way, as many others are.
__________________
2021 Ram 3500 HO DRW Megacab 4wd 3.73
2022 Riverstone 42FSKG | Pullrite Superglide 2315
Airlift 7500XL Airbags w Wireless One Compressor
darrellr is offline   Reply With Quote
Old 03-28-2023, 12:47 PM   #8
Senior Member
 
Marine359's Avatar
 
Join Date: May 2021
Location: Asheville, NC
Posts: 1,547
Fivers have less of an issue than TTs. Traveling full or empty has a dramatic affect on tongue weight. Our sweet spot to get the right tongue weight is 1/2-2/3 full. Additionally on most TTs there is just a single steel bar supporting the fresh tank, connected to frame rails by tapping bolts. Bad news: we went wit full tanks to Key West in January. When we got there, the bolts on one side had fallen out, and the tank was ready to fall out. Took me a couple of hour to effect a field repair.

Opposite of OB: we will never again travel with more than 1/2 tank FW. If we need more water after we set up camp boondocking, we carry a couple of empty reliance jugs that we can fill up and top off the FWT. Empty the gray water with tote at the same time.
__________________
Jim. 2021 Canyon Denali 4x4 3.6L, Husky C-Line
2021b Micro Mini 2108DS, 170AH LiFePo4, Xantrex XC2000, Victron 75/15 & 100/30, Champion 2500w df
Marine359 is online now   Reply With Quote
Old 03-28-2023, 01:21 PM   #9
Member
 
Join Date: Feb 2022
Location: Ivins, Utah
Posts: 34
Smile

We generally travel from RV park to RV park so we don't need full tanks, five - seven gallons will do. I have filled them from home to a RV park 200 miles away and emptied them for the trip back home and noticed little or no difference in mileage. Like someone said, head wind is the MPG killer. My whole issue with full tanks is I don't want to stress the tow vehicle or trailer any more than necessary. We also carry a water softener and use a Brita filter system for drinking, so it's all consistent.
__________________
2017.5 Lance 2295
2021 Silverado 1500 Duramax
USN, Pilot, Retired, Married to best friend 44+ years
Ivins is offline   Reply With Quote
Old 03-28-2023, 04:08 PM   #10
Community Moderator


 
Join Date: Dec 2021
Posts: 2,484
Agree, a full water tank will not likely affect gas mileage. Water weighs 8.345 lbs/U.S. gal.
__________________
2022 Jayco Pinnacle 36SSWS / 2016 Ford F-350 6.7L diesel crew cab long bed 4x2 DRW
2022 Thor Palazzo 33.6 diesel pusher / 2021 Chevy Equinox LT AWD toad
Camp CA is online now   Reply With Quote
Old 03-28-2023, 06:04 PM   #11
Senior Member
 
Tiffin Owners Club
Join Date: Jul 2014
Location: Cedar Falls, IA
Posts: 2,093
When we had our last trailer, an Outdoors RV, it actually handled better with full tanks. Probably had to do with the tongue weight, but it was much easier to drive that way. We always traveled with as much water as our tanks could hold, both when we had trailers and in our current MH. You never know what might happen on the road. And it is particularly handy to be filled up completely before getting close to your boondock location. Sometimes places you thought would have water get it turned off for some reason - a well pump issue, sanitization issue, pipe leaks, etc.
__________________
2018 Tiffin RED 37PA
2023 F-150 carrying a RZR 570 Trail UTV toad
https://toobusyforwork.com
UTTransplant is offline   Reply With Quote
Old 03-28-2023, 06:10 PM   #12
Senior Member
 
gatorb8's Avatar
 
Join Date: Mar 2012
Location: Florida panhandle
Posts: 1,105
I travel with a few days of normal usage, not full.
__________________
2018 Adventurer 19RD 19í 11Ē
Ford E350 V10 Cutaway Chassis Class C
#10050 GVWR, #18500 GCWR Smoke that!
gatorb8 is offline   Reply With Quote
Old 03-28-2023, 06:14 PM   #13
Senior Member
 
Join Date: Apr 2018
Posts: 3,327
Unless itís a case of my water is better than yours I would never travel with a full tank, 850 lbs vs 250, what I normally carry, you carry half the water so not as much weight to drag. Another thing I think about is how hard is the water weight on the tank when bouncing and sloshing. Never seen an explanation of why some rv tanks fail.
__________________
2004 Dynasty 4
shootist is online now   Reply With Quote
Old 03-28-2023, 07:24 PM   #14
Senior Member
 
ArtJoyce's Avatar
 
Monaco Owners Club
Freightliner Owners Club
Holiday Rambler Owners Club
Join Date: Sep 2019
Location: Thornville, Ohio
Posts: 3,085
It depends for us?? We have a 100 gallon tank, that's a little over 800 LBS. If all we're doing is traveling to a CG that has water, I only fill 25 gallons. I like to have some water for the road and to flush the toilet. But if going to a CG with no water we travel with 100 gallons.

Now if we are headed out from our house we like to drink our own water so it's 100 gallons.
__________________
Art & Joyce
Thornville, OH
Kia Soul pushing a 36' DP Endeavor
ArtJoyce is offline   Reply With Quote
Reply

Tags
tank, water



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
Access to water tanks and waste tanks nightmission iRV2.com General Discussion 14 02-22-2018 12:22 PM
dirty tanks - need recommendation on what cleaner to let soak in tanks. BarbandBob MH-General Discussions & Problems 13 06-09-2015 07:08 AM
water tanks-how long will full tanks last Papashap iRV2.com General Discussion 17 09-05-2012 10:30 PM
Black water showing full but not really full. HuddJams Class A Motorhome Discussions 8 05-14-2012 01:59 PM
To over drive or not to over drive? homeless Vintage RV's 14 04-25-2012 10:59 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 12:43 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.