12/08/2024
This leak was 12ft. deep under a garage floor. Five condos were effected. The pipe was 4" ductile iron. My SR-20 kept saying it was 5ft. deep. I located it with the Sewerin A50 and the BO-4 ground mic. I had to turn the valve on, adding water while at the same time pushing 30psi of air from the house side. I could barely hear a low rumbling sound that ended up being appx. 2ft. from the actual leak. This is the deepest slab leak that I have seen.