This WW II era 6 X 6 was used to clean or flush the streets in the area of downtown Ames.  It is mounted with a nozzle on each side, directly behind the cab.  In this photo it is parked beneath the 300,000 gallon riveted storage tank behind the water plant which is visible in the background.  This photo faces west.

In these Ames Tribune photos from March of 1951, the flusher truck is heading west at the corner of 5th Street and Burnett Street.  Don Ellsworth was the driver.  Here Tom McKenna is looking down from the passenger door.  When spraying Main Street Tom would follow the truck on foot cleaning with a push broom.  The old armory building, by this time the O'Neil Dairy building, with the peaked roof, is visible behind the truck.