Anytime a big emergency happens, people start to think about emergency preparation. What can you do to make sure that your family has what you need should the unexpected happen?
One of the first things we temporarily lose in an emergency like an earthquake is water. That's why "they" (various government and emergency agencies) say we should have at least 3 days worth of food and water on hand for an emergency.
Sometimes, though, we're caught unaware and don't yet have what we're supposed to have for an emergency. What do you do if you're out the ONE thing our bodies cannot survive without? You clean your water yourself.
If the water is unclean, you can purify it by putting in 16 drops of bleach per gallon of water. This way, if you have bleach on hand you'll have what you need to purify water "just in case" you don't have what you need in an emergency.