1902 Slow Sand Filter Washing Machine - Yuma, AZ
Posted by: Groundspeak Premium Member TerraViators
N 33° 43.602 W 114° 36.983
11S E 720848 N 3734405
Sand Filter Washing Machine in Gateway Park, Yuma, AZ. #547
Waymark Code: WMY0G7
Location: Arizona, United States
Date Posted: 03/27/2018
Published By:Groundspeak Premium Member fi67
Views: 1

The 1902 Blaisdell Slow Sand Filter Washing Machine was invented by Hiram W. Blaisdell. It's primary use was to wash sand filters used to treat drinking water. The machine treated Colorado River muddy water. Blaisdell patented the machine, selling it across America.

The machines traversed steel tracks atop walls of filter basins. The washing chamber was lowered into a basin and the washing unit stirred the sand bed to dislodge sediment. The sediment was removed via suction pumps. The machine was controlled by an operator in a corrugated metal enclosure.
Type of Machine: Sand Filter Washing Machine

Year the machine was built: 1902

Is there online documentation for this machine: [Web Link]

Year the machine was put on display: Not listed

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TerraViators visited 1902 Slow Sand Filter Washing Machine - Yuma, AZ 02/10/2013 TerraViators visited it