The water meter reading guy informed me that I had used so many thousands of gallons of water yesterday. I had a pressurized line pop at the fitting. It has been perfect since 2009. Just decided to let go. And of all the pipes I monitor this is one that we installed before the metering equipment. It was basically anew area that we added into the sprinkler system once we had the main sprinklers in place.
You can see it had primer on it before the glue. It held for years.