The Sewer Line Rapid Assessment Tool (SL-RAT) from InfoSense provides collection system operators with a practical new tool for focusing camera and cleaning efforts on dirty gravity-fed lines. It exploits the fact that sound energy flows similarly to water through a pipe, “yelling” in one manhole and “listening” in an adjacent manhole to provide an overall blockage assessment. It is highly portable with ruggedized field-tested construction, and doesn’t require confined space entry and waste flow contact. Operators can be trained in minutes. Test results, including GPS coordinates, are immediately available with little interpretation required. Results can be saved to a cloud application for additional analysis. 877/747-3245; www.infosenseinc.com.