As our lot slopes down a steep hill in the back yard, Chris introduced us to a new type of miniature rotor that has recently become extremely popular. These are often called rotary nozzles or rotator nozzles. They are called rotary nozzles because they are a very small rotor that is the same size as the standard nozzle on a spray-type sprinkler. Thus they fit onto the smaller, and less expensive, spray head pop-up bodies. Rotary/rotator nozzles are more efficient than traditional spray heads because they produce less ?mist? that evaporates before it reaches the ground. They are often promoted for use in place of standard spray heads by water conservation agencies. They are pricier than standard irrigation nozzles, but data suggests they do conserve water. Chris also had to "make room" for all the zones at our control box, as the original irrigator's PVC pipe did not allow for wiring for 13 zones. Without fail, he showed up, worked in the heat without complaining, and he did not stop until he was 100% satisfied with the job. He will NOT CUT CORNERS. He takes great pride in his work. I believe he charges by the zone. He is a very patient, experienced, and hard-working young man. He is good at what he does. I would not hesitate to recommend him. His business card indicates that he installs, repairs, and offers design consultation and diagnosis.