US Patent 10288519 Leak detection system

A leak detection system includes an air source. A pipe is provided and the pipe is buried underground. The pipe has an inlet and the inlet is exposed with respect to ground. A fitting is selectively fluidly coupled between the air source and the inlet. Thus, the fitting pressurizes the pipe with air. The fitting includes a gauge. The gauge communicates air pressure within the pipe. Thus, the air pressure may be monitored to detect a leak in the pipe.