795G03: "Jetting rig made over from Bean Spray machine."
Caption further reads, "Max pressure 600#/sq. in. Jetting a 3/8" piez. pipe to 25'. Took about 2 min." Caption on second print reads, "Getting down piezometer pipes (3/8") with converted Bean sprayer outfit. Using about 200 psi. Appleton drainage project near Grand Jct. Earl Cowley SCS engineer on jetting pipe."