The next two photos are of the same farm in Lynn County near Tahoka, Texas.
The install was made on PVC pipe of a Center Pivot irrigation system.
The PVC pipe was placed below the normal pipe of the pivot due to the hardness of the water has caused holes in the the normal pipe above.
The install was after the first tower to allow a the circle inside the first tower as a check and untreated.
Three sets of two model 8000s were install first.
This was a 1/2 mile system with 1/2 the number of units installed 1/2 way down the system.
Jimmy Woodard is the person in both of the irrigation pictures.