System and method for acoustic leak detection in a utility distribution system

A leak detection system for identifying leak indication in a utility distribution system which includes a pipe network for supplying a utility to a multitude of service connections and a plurality of acoustic sensors mounted at the service connections, wherein the leak detection system comprises:

• a plurality of acoustic sensors configured to establish one or more first noise indicators and second noise indictors,
• a back-end system for receiving the one or more first noise indicators and second noise indicators from the plurality of acoustic sensors;
• pressure controlling devices controlled to generate fluid pressure changes such that the pressure in the distribution system is reduced during night time;
• and
• a signal provider providing a signal to the back-end system about a change in fluid pressure;
• wherein said back-end system is configured for correlating the fluid pressure with the one or more first noise indicators established before the change in fluid pressure and the one or more second noise indicators established after the change in fluid pressure in order to identify service connections subject to leak indications.