The author is a graduate of the University of Washington (class of 2006) with an interdisciplinary degree in Environmental Science. He has been designing, studying, and
testing slow sand water filters, and roof water / rain water harvesting systems for 8 years.
Additionally, David has 35 years of professional experience in industry including: 3 years as an electronics technician, 3 years as a part time math instructor, 25 years restoring antique clocks, and military service in the U.S. Navy.
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