Choose a place that is cool and dark. Less sunlight means less strain on your water container, and less heat means less opportunity for the growth of bacteria and other potentially harmful pathogens inside. Also be sure to choose a place that will be accessible in the aftermath of the disaster event, and one where your supply will not likely be damaged. For example, if you live in an earthquake zone, don’t store your water in the basement. If your home shifts off the foundation during the event, you may not be able to safely go downstairs.