Friday, August 20, 2010

Inventions That Make a Difference: SODIS

Here's another great clean water idea from Design Revolution: 1001 Products That Empower People by Emily Pilloton.

SODIS. I have no idea what the letters stand for but I do know that it's a simple solution.

If you have a clear water bottle or jar, you fill it with clear water. It has to be clear enough to read newspaper headlines through the water looking through the standing bottle from top to bottom. If it passes the clarity test, put the bottle on your tin roof and let it cook for six hours on a sunny or slightly cloudy day. If it's cloud all the time, you have to let it cook for two full days.

That's it! You've just killed the stuff that can cause diarrhea and other waterborne diseases.

The SODIS web site is here.

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