Unlike food, the maximum time an individual can go without water seems to be about a week. You should have water purification devices like a Water filtration bottle, or water purifying tablets in your survival or camping kit. If you get lost in the wilderness, these handy bottles combine the ability to purify water from a pond, stream or even a puddle. You can carry the purified water with you in the bottle as well. Armageddon Survival carries a vast selection of name brand water filtration bottles that vary in size, shape. Some have straws and strap to your belt for easy carrying.