how much water for 3 nights

luberhill wrote:
wont be drinking it but showers for 2 people, one shower a day, and toilet...my tank holds 60 gallons, if there is no water available should I drive 100 miles with it full ? Or half ??
Not sure to gage how much we will need or use

Not as much concerned about fuel mileage as ride quality ?? First timers

That is a difficult question to answer. Depends on how long you let the water run in shower. How many times you flush the toilet, wash your heads afterwards.
If it was me I would fill my tank before I left and go from there. We have made through a 3 day weekend on a ful tank with some left with 2 adults and 2 more adults and a teenager for 1 night.

I never really noticed a difference in ride quality with a full or empty water tank.

Just my experience, others may have another point of view.