You might one day find yourself in a situation in which you cannot find safe drinking water during an emergency. If any water you find does not look clear, or which you think might be contaminated, you should purify it before drinking.
The easiest way to purify water is by boiling. Disease-bearing microorganisms cannot survive in high temperatures. Boil the water for about one minute. For improved taste, pour the water back and forth from one clean container to another.
If you’re unable to boil your water, treat it chemically before drinking. Household chlorine bleach can be used to treat your water. Use an eyedropper, to drop eight drops of bleach into each gallon of water to be treated. Make sure the chlorine you use lists hypochlorite as its only active ingredient; any extra chemicals or fragrances will only further contaminate the water. Stir the water and allow it to stand at least half an hour When the water appears clear, it is likely safe to drink. If it is still murky or clouded, put in eight more drops and let stand another half an hour.