Be certain to label each container so there will be no question about its contents. Include the date and information on the method of disinfection used. Stored water may eventually develop a disagreeable appearance, taste, or odor. Under emergency conditions, water that tastes flat can be aerated by pouring the water from one container to another to another about three or four times. Be Careful About Rain Water - Rain water that has been collected should be treated the same as any other unknown water source.
Rain water contains small particulates and acid.
Most water can be purified for drinking purposes by boiling it for 10 minutes. This will destroy the bacteria. In order to improve the taste it will be necessary to aerate it after boiling. This is accomplished by pouring it from one container to another several times. This should be done after the water has been allowed to cool.