Here is a photo of a break that was actually a little difficult to find. The whole zone basically stopped working, very little water was be emitted from the heads, the homeowner had called me out because he thought the station valve was having pressure issues. After determining that the valve was in good working condition, I started to close off the nozzles by driving the screw in the nozzles down, essentially turning off the heads, until I was able to force enough water out of the broken line, which helped me identify where the problem was. The break is a little hard to see but it is located at the elbow of the PVC line.