I recently bought the 2.5 gallon plastic boxes of water with a spout sold by many supermarkets. I bought the cheapest water I could find. The _jugs_ failed in a week or two. They weren't stiff enough, and they wrinkled and cracked at the wrinkle. Two jugs out of five broke and leaked in a month.

If you're storing water, check it occasionally for leaks. We've had the spouts leak before, so we store with the spouts up instead of in the down position you'd use them in. But this was the first time we had the actual container spring a leak.