AWWA DSS63745

This slide presentation outlines information on acoustic leak noise loggers that included: default listening times should not be used without first evaluating the usage characteristics of the specific location; operators should evaluate usage characteristics when conducting acoustic leak detection; the usage may change throughout the year, therefore the settings may need to be changed after the usage profile changes; and, in many cases in areas with significant amounts of automatic irrigation systems - the most effective leak noise logging times are often between 12 midnight and 2 a.m. rather than 2 a.m. to 4 a.m. Includes figures.