Yes, this is true! The picture I have here is one African villages solution to sterilizing water, called the Sodis solution. Simply take water that isn't brown, put it in a pop bottle, place the pop bottle over something metal for six hours. Viola! The UV light has destroyed any pathogen that might be inside the bottle.
Please note: this does not remove any chemical or radiological contaminants that may be in your drinking water.
For brown water, you can make a variety of simple water filters using charcoal and sand. One version that I saw used two buckets, one hanging over the other. The top bucket was filled with charcoal and sand, and had one or several holes drilled in the bottom. The bottom bucket was empty, ready to catch the filtered water. Be sure and changed the charcoal and sand when needed to prevent bacterial build-up (our commercial water filter says the change is needed every three months.)
Just two great ideas if you do not have a Katadyn, Berkey, or other commercially built water filter.
Update: Well, there might not have been any tornado sirens, but SOMETHING ripped through our town (and a town south of us). Less than a mile from here, trees and fences were ripped to shreds. A friend of ours in the smaller town to the south said it went through his neighborhood, too. It was even on the news....trees into roofs, walls ripped off the side of houses, cars thrown into each other or into garage doors. Our buddy was lucky he had no damage to his property. No one was hurt by this "strong wind" (as the news called it).
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