How can you efficiently locate a leak in a distribution pipe?

Using acoustic devices or infrared imaging is an efficient method for locating a leak in a distribution pipe because these technologies enable the detection of sound waves or thermal changes associated with leaks. Acoustic devices can pick up the sounds produced by water escaping under pressure, allowing technicians to pinpoint the location of the leak through sound amplification. Infrared imaging, on the other hand, detects temperature variations in the surface of the pipe and surrounding areas, as escaping water may change the temperature profile due to evaporation.

These methods are non-invasive and can cover large areas quickly, making them more effective than solely relying on visual inspections which may miss hidden leaks, especially those underground or behind walls. Methods like turning off the water supply are not practical for quick leak detection, as they don't provide information about the actual location or nature of the leak. Chemical leak detection agents can also be useful, but their application can be more invasive and may not work in all situations, such as when dealing with larger leaks or when the substance does not interact with the leak detection chemicals.