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Old 03-15-2013, 04:53 AM   #1
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Winnebago Owners Club
Join Date: Mar 2013
Location: Arizona
Posts: 649
Dumping fresh water

It seems like carrying 90 gallons of fresh water for the drive home is just a waste of fuel. Would dumping that 750lbs of weight make any real difference on the 250 mile home?
Our Phoenix home water is terrible quality and we just filled with a good quality water.

Joseph and Sandy
Arizona Sunbirds

(Snowbirds in Reverse)
Winnebago Chieftain / Ford Hybrid Toad
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Old 03-15-2013, 04:57 AM   #2
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Fleetwood Owners Club
Ford Super Duty Owner
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Posts: 24,504
It will certainly cost you a little . It may be worth it if as you say , your water at home is not good. I always carry 1/2 tank for a few reasons. One of which is that I find it gives the MH a little more stability.


Cliff,Tallulah and Buddy ( 1999-2012 )
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Old 03-15-2013, 06:02 AM   #3
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Tiffin Owners Club
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Location: Maryland
Posts: 800
I agree that carrying some water makes my motorhome ride and handle much better. The propane tank and generator are one the right side and the water tank is on the left. When the tank is empty it handles much different. I always carry at least a half a tank.
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Old 03-15-2013, 07:08 AM   #4
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Location: Silver Springs, FL. USA
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A little extra weight has practically zero effect when the roads are flat. The only extra fuel cost is from an infinitesimal increase in the rolling resistance of the tires. Climbing hills, though, makes a bit more difference since that extra weight is actually carried to the top (and you have to brake it going down again). Even so, on a modest 30,000 lb coach + toad, we are talking a 2.5% increase in weight. You probably still would not notice it.
Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
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Old 03-15-2013, 10:16 AM   #5
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Location: Peru heading for Brasilia, Brazil
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If you want to quantify the effect, download a document titled Understanding Coach/RV Performance - published by Cat.

Should be mandatory reading for all RV drivers.

My water tanks are kept full and waste tanks empty as far as practical merely because you never know when you might be stuck on a roadside and have to live in the MH. In Australia where winterising isn't a factor, the vehicles are always stored with full water tanks
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
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