Water escaping a leak under pressure causes the pipe wall to vibrate. These vibrations can be sensed acoustically on valves using the latest noise level logger technology. These noise and frequency can be stored using inbuilt audio data recorder.Using both these factors, the leak probability can be determined, as well as the relative leak position in relation to adjacent loggers. User friendly computer software as well as the established principle helps the user to locate leaks efficiently. Even Real-time measurements also can be done.