When it comes to preparing for a camping trip or managing the boondocking necessities, water is always a major concern. Nothing will ruin a boondocking experience faster than the realization that you are running out of drinkable water.
There are several practical ways to ensure an adequate supply of fresh, cool, potable water for drinking and cooking in camp. I tend to look to the most basic and least complicated solutions; some of them are very old classics. I therefore have and use a few (very) old-fashioned canvas desert water bags.
Canvas water bag
The canvas water bag is pure genius and near perfection as a means of carrying water. The best ones are made in Scotland, using canvas made of Scottish flax. They’re getting hard to find, whereas every hardware store used to have piles of them and some hanging on hooks near the bucket and shovel department. They were inexpensive—$2—whereas today they are expensive, e.g., $50–$100. Every farm vehicle had one strung over a hook somewhere, construction machinery was always adorned with one or more wet water bags, and no camping trip was started without the water bag being slung around the hood ornament of the car.
The canvas water bag will hold about a gallon. The genius of it is that the canvas is soaked to saturation for a day or so before use. The cloth fibers swell and hold the water in the bag while allowing evaporation, which cools the water. To me, there is nothing sweeter than a long, cool drink from a water bag cooled over the open road.
When headed to a boondocking spot for an extended time, or if at all uncertain of having access to water, I also use one or more of the special six-gallon BPA-free cans and purpose-made for carrying potable drinking water.