Rapid inspection device uses acousticsProblemCharlotte-Mecklenburg Utilities Division in Charlotte, N.C., wanted to reduce sewer overflows without cleaning the entire 4,100-mile system. Officials searched for ways to determine blockages quickly and at a cost relative to CCTV inspections.SolutionThe division selected the Sewer Line Rapid Assessment Tool from InfoSense. The transmitter, placed in an open manhole, transmits tones. In a downstream manhole, the receiver compares the tones with sounds it should hear in a clean pipe. If the signal is degraded, algorithms analyze it and present the operator with a simple assessment in real time on a scale of zero to 10.
