Technician perform live detection at home Technician started off with whole home pressure test. Failed. Technician, then use acoustic lead to talk to machine to locate point of interest. POI was behind washing machine, three-quarter main feed to master bathroom, connecting other two restrooms for a total of three restaurants. Perform cut and cap on three-quarter line line located. Perform pressure test held. Burst waterline on three-quarter cold. Feed to rest of home.