Blaisdell Slow Sand Filter Washing Machine (Yuma, Arizona)

USA / California / Winterhaven / Yuma, Arizona
 NRHP - National Register of Historic Places, industrial equipment, water supply treatment plant
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Historic sand filter washing device listed on the National Register of Historic Places (NRHP).

Built: 1902
Inventor: Hiram W. Blaisdell
Areas of significance: Industry; Invention
Date added to NRHP: 1/18/1979
Notes: This piece of equipment was built to clean the sand filters used in the process of making water from the Colorado River drinkable. The machine was patented and sold to various water treatment organizations across the country, but this one was the first built. It is currently located on land owned by the city of Yuma.
Wikipedia article: http://en.wikipedia.org/wiki/Blaisdell_Slow_Sand_Filter_Washing_Machine
Nearby cities:
Coordinates:   32°43'36"N   114°36'58"W
This article was last modified 2 years ago