If you’re flying solo, that jug is your water kingdom. One person drinking the recommended eight, 8-ounce glasses a day is about a gallon every four days.
Do the math. A five-gallon jug for one person? That’s 20 days of crisp, glorious hydration. You’ll get to know that jug. You might even give it a name, like “Gus.”
But are you really drinking eight glasses a day? Nope. Most people don’t. If you're a normal human who drinks coffee and occasionally forgets to hydrate, you’re looking at three to four weeks. That jug is your long-term roommate.