We still haven't decided on a trailer yet. I'm leaning towards a Grand Design Momentum toy hauler 351M. It carries 157 gal of water.We have 3 kids and 2 adults. Because of my psoriasis, I need at least 10 min of hot water. So I figure 2 gal/min x 30 = 60 gal just for showering. That means we can go 2 plus days boondocking. If I could get another 100+ gal of water, we could go another day at least. That gives us 3 - 4 days, which should be enough.Do any of you carry an extra water tank in the bed? If so what kind? I've seen water bladders but I think it would roll around or slosh. Do I need a dedicated water tank like an auxillary diesel tank with baffles?I also realize the gray tank only has so much capacity. What's the general rule with gray water in areas you can boondock? If biodegradeable soaps are used with this water, is it ever acceptable to dump the water in the bushy areas or is this verbotten?__________________

157-gal of fresh water? are you sure that's not the combined totals for the fresh, gray and black tanks? 157-gal of water would be 1256-lbs. water is 8-lbs per gallon which translates to 800-lbs plus the weight of whatever it's carried in in the bed of your truck. watch your weights on the truck both the gvwr and what your truck weighs with people, stuff, gas and the extra water on board. and the gcwr, the amount of weight the truck can pull including itself.

re dumping gray water....it depends on where you are and if it's allowed (there will be signs to guide you on that)and how busy the camping area is. you have to remember that you won't be the only one using the spot. if you leave a wet soggy place in the actual camp site, someone else has to park around it. desert areas are generally more receptive to allowing grey water, but not always.

It could have that much fresh water storage. My Fuzion toyhauler has 140 gallons.

rk911 wrote:157-gal of fresh water? are you sure that's not the combined totals for the fresh, gray and black tanks? 157-gal of water would be 1256-lbs. water is 8-lbs per gallon which translates to 800-lbs plus the weight of whatever it's carried in in the bed of your truck. watch your weights on the truck both the gvwr and what your truck weighs with people, stuff, gas and the extra water on board. and the gcwr, the amount of weight the truck can pull including itself.Well the F450 is rated to carry 5410 lbs in the bed. I figure if the trailer is 16k lbs gvw, 25% of that is 4000 lbs. So I should be ok. But you're right. I'm still going to have to watch it carefully so we're not overweight.And yes, the GD Momentum is 157 fresh water only. Amazing. Heck the DRV's carry 100 gal fresh water.

DennisVR wrote:It could have that much fresh water storage. My Fuzion toyhauler has 140 gallons.wow! impressive.

Carrying extra water for boondocking | Good Sam Community

Lexx
Explorer
Oct 28, 2017
ependydad wrote:
Aquatank2 is what I have but only a 60 gallon bladder. I also don’t use it until I’ve used my supply of fresh water and need to refill (read: go get more).

If you want to carry water while towing, I’d look at a couple of 55 gallon drums and assemble something for carrying it that way. Height might be an issue for clearance with the fifth wheel overhang.
.

Yes, that's one of the units I'm looking at. They come in a number of sizes and as long as I isolate it a bit so that nothing sharp hits it, this looks like a good solution. I'm just wondering if there's anything else out there. The nice thing about this, is it's low profile so I can close the bed cover if I unhitch and take a drive somewhere.
TenOC
Nomad
Oct 28, 2017
Remember a gallon of water weighs a little over 8 pounds. That is 100 gallon weights 834 pounds. This is a lot of extra weight.
ependydad
Explorer
Oct 28, 2017
Aquatank2 is what I have but only a 60 gallon bladder. I also don’t use it until I’ve used my supply of fresh water and need to refill (read: go get more).

If you want to carry water while towing, I’d look at a couple of 55 gallon drums and assemble something for carrying it that way. Height might be an issue for clearance with the fifth wheel overhang.
Lwiddis
Explorer II
Oct 28, 2017
Trying to think of the last campground where dumping our grey water on ground was allowed...never.
rk911
Explorer
Oct 28, 2017
DennisVR wrote:
It could have that much fresh water storage. My Fuzion toyhauler has 140 gallons.

wow! impressive.
Lexx
Explorer
Oct 28, 2017
rk911 wrote:
157-gal of fresh water? are you sure that's not the combined totals for the fresh, gray and black tanks? 157-gal of water would be 1256-lbs.

water is 8-lbs per gallon which translates to 800-lbs plus the weight of whatever it's carried in in the bed of your truck. watch your weights on the truck both the gvwr and what your truck weighs with people, stuff, gas and the extra water on board. and the gcwr, the amount of weight the truck can pull including itself.

Well the F450 is rated to carry 5410 lbs in the bed. I figure if the trailer is 16k lbs gvw, 25% of that is 4000 lbs. So I should be ok. But you're right. I'm still going to have to watch it carefully so we're not overweight.

And yes, the GD Momentum is 157 fresh water only. Amazing. Heck the DRV's carry 100 gal fresh water.
DennisVR
Explorer
Oct 28, 2017
It could have that much fresh water storage. My Fuzion toyhauler has 140 gallons.
TexasShadow
Explorer II
Oct 28, 2017
re dumping gray water....it depends on where you are and if it's allowed (there will be signs to guide you on that)and how busy the camping area is. you have to remember that you won't be the only one using the spot. if you leave a wet soggy place in the actual camp site, someone else has to park around it.
desert areas are generally more receptive to allowing grey water, but not always.
rk911
Explorer
Oct 28, 2017
157-gal of fresh water? are you sure that's not the combined totals for the fresh, gray and black tanks? 157-gal of water would be 1256-lbs.

water is 8-lbs per gallon which translates to 800-lbs plus the weight of whatever it's carried in in the bed of your truck. watch your weights on the truck both the gvwr and what your truck weighs with people, stuff, gas and the extra water on board. and the gcwr, the amount of weight the truck can pull including itself.

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Carrying extra water for boondocking

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