11-18-2009, 11:28 PM
Easy solution that I used at a very hot job. I used to take in 2 1 liter bottles of water everyday. I'd fill them about 3/4, turn the lid on most of the way, and toss them in the freezer. The water froze, expanded, but the lid being slightly loose allowed air to expand out the top so they didn't explode.
4 Gallon jugs filled 3/4 with the lid just loose enough that air can escape and you have 3 gallons of water that won't burst the bottle if it freezes. The heater in the car will slowly melt them so you'll have ice cold, drinkable water.
4 Gallon jugs filled 3/4 with the lid just loose enough that air can escape and you have 3 gallons of water that won't burst the bottle if it freezes. The heater in the car will slowly melt them so you'll have ice cold, drinkable water.