Category:Blaisdell Slow Sand Filter Washing Machine (HAER images)
Yuma, Arizona.
Media in category "Blaisdell Slow Sand Filter Washing Machine (HAER images)"
The following 9 files are in this category, out of 9 total.
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Blaisdell filter cleaner AZ1.jpg 4,660 × 3,623; 4.24 MB