Water is a necessity, not only for drinking but also for cooking, cleaning, and sanitation.  Packaged water is generally suitable primarily for drinking due to the high level of filtration and packaging that is used.  For more general purposes such as cooking and sanitation, it is much more economical to store water using larger containers such as a 55 gallon barrel. By using inexpensive but large long term water storage containers and treatments, you can put away a large amount of water safely for up to 5 years. A 55 gallon barrel will provide enough water for a family of 4 for up to 14 days. Store emergency survival drinking water storage containers in a cool, shaded location once you have filled it.