Also, make sure that the grooved runners in which the door's wheels travel are firmly attached to the wall. Water is essential. And it should not be skimped on. The average person needs to drink two quarts per day - that's eight cups. In order to meet basic needs for drinking, cooking and washing, the recommended allowance is two gallons per person per day.
Authorities further advise to allow for pets' needs also.
It is not safe to use containers that have held toxic substances. Seal and label the bottles before storing in a cool, dark place. Water should be replaced every three months. Places suited for additional storage at the last minute are the bath tub, washing machine and sinks. Hidden sources for emergency supplies include the hot water tank, ice cubes and the plumbing.