I'm with RogerR on this; it's the waste tanks I've always worried about.
My TT had 80 gal fresh capacity, we bring water to drink separate, but even still, I never bothered to try to figure out my gallons per day usage. The MH has a smaller fresh tank, can't remember what it is right now, but we've never run out yet.
BUT I DO know how to conserve it. And I know how much certain things use. For example, I know DW and I can both shower for less than 4 gallons.
I would say 12 gallons a day is more than reasonable. You could probably get by with less, but if you can go 7 days on a tank of water, that seems "good enough for government work" to me!!
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-2018 Greyhawk 29MV
-2020 Jeep Wrangler Unlimited (JLU) (Primary Toad)
-1994 Jeep Wrangler YJ (Secondary Toad)
-2014 Jay Flight 28BHBE & Ram 2500 6.4L CC 4x4 (sold)
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