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Uploaded on Feb 17, 2010
Capture the rain! (Now legal in Washington state). A quick look at roof water harvesting using a slow sand filter combined with a diverter. This is an overview of the procedure and a demonstration of a working system. An instructional video on how to build a system can be found here: http://www.youtube.com/watch?v=S-_RDB...
As of September 18, 2016 this filter is still running and producing clean water. The sand has not been changed.
The water test results from this filter (called filer 1) can be found at our website here: http://slowsandfilter.org/results_fou... Scroll about half way down the page. There's lots of info there, and more than just one test has been done. The filter works.