Quote:
Originally Posted by ton80
The main distribution pipes for irrigation usually are purple color since that is the designated color for non-potable water. Black flexible pipe that looks corrugated is used to connect the spray head with the irrigation headers. This done so that t he heads can be adjusted as the sod layer gets thicker. Sometimes this flexible pipe is used to locate a spray head further from the others in a particular zone. Sometimes spray heads near each other can be on different zones. I suggest that you manually run through all zones to see if the mystery spray head pops up when a different zone is turned on.
The modification that you described should not have cut water supply to that spray head since you only worked on a "dead end".
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Your answer is accurate and I'll continue to play with this a bit more.