Patent ID: 7007545

Claim:
A method to detect water losses and to locate leaks in a water supply system ( 13 ), comprising the steps of locating measurement probes ( 1 ) at predetermined measurement points ( 11 ) in said system, the measurement probes including measuring elements for outputting measured quantities indicative of a flow rate and direction, a pressure and noise integrated into each measurement probe ( 1 ), deriving from said probes ( 1 ) at intervals or continually measurements of flow data including flow rate and direction, water pressure and noise, analyzing said flow rate and direction, water pressure and noise data using an evaluation unit to determine a presence of and a proximity of a leak, and simultaneously connecting said probes to a noise correlator to determine a location of a leak between two neighboring probes, wherein in the manner of a random-check generator, different areas of said water supply system ( 13 ) are analyzed for water loss and leaks alternately and at repeated intervals.