The Sewer Line Rapid Assessment Tool, or SL-RAT, from InfoSense is a portable and easy-to-use technology that uses sound waves to assess blockage conditions in gravity sewer pipe. It can be thought of as the first step in a collections system maintenance process, providing a fast low-resolution view of blockage conditions. An assessment is provided in three minutes or less, allowing a two-person crew to screen up to 10,000 feet per day. It is portable, offers no-flow contact, is GPS-enabled, and is EPA-validated. 877-747-3245; www.infosense.com; Booth 1039.