Truck bed water tank?

Downside for me to a single large water tank is where to store it when not in use, especially during the off season when I don't want it sitting in the back of my truck. Downside to a bladder is the inside will never fully dry. I instead use five 7 gal Aquatainers - inexpensive, made of food grade plastic, cube shaped so they take up little room in the truck or to store, weigh virtually nothing when empty and just 60 lbs when full. Mine live in the truck when we're camping so I can drop by the campground fresh water supply anytime I want, back at the campsite I pump it into the trailer's fresh water holding tank - no lifting at all.



When we're not camping my Aquatainers hang off the garage wall, cap off so they can dry thoroughly ... also where they hang during the winter, out of the way. K.I.S.S. :B