With a time-based maintenance program, Little Rock (Arkansas) Water Reclamation Authority annually serviced 40% of its small-diameter collections system using high-cost resources such as CCTV or cleaning.

In January 2017, Little Rock started using the Sewer Line Rapid Assessment Tool (SL-RAT) to rapidly screen 100% of its small-diameter pipes for blockages on an annual basis at low cost. They focused high-cost resources on the 20% of the system that was determined to have blockages through acoustic screening.

By using acoustic technology to screen before cleaning, Little Rock cleaned 32% fewer linear feet but increased cubic debris removed by 116% in 2017. By 2018, the city reduced sanitary sewer overflows by approximately two-thirds without hiring any additional personnel. 

InfoSense Inc. is the manufacturer of the award-winning SL-RAT. The SL-RAT uses sound waves to detect blockages in segments of pipe by quickly inserting a portable transmitter and receiver into either end of the pipe. 877-747-3245 | email sales@infosense.com | www.infosense.com