By: Mark Singleton, North Central Regional Manager for Thompson Pump and Manufacturing Company
CHALLENGE
First, the city needed to consider several challenges.
- Continuous Flow: the bypass system needed to handle large and variable flow rates to ensure uninterrupted wastewater management during the lift station installation.
- Reliability: the bypass system had to be highly reliable with fail-safe measures in place to prevent any overflow or backups.
- Environment and Noise: the bypass system needed to minimize environmental impacts, not just from potential overflows, but also noise since the lift station was near a residential area.
SOLUTION
With the challenges and needs in mind, Evansville city leaders contacted KM Specialty Pumps & Systems, Inc., a Thompson Pump distributor. The KM Specialty team determined Thompson Pump and Manufacturing Company, a leading provider of high-quality and heavy-duty bypass pumps, would need to be consulted. The team determined a dual-pump sewer bypass system would be the perfect solution.
Crews set up an electric 8JSCE-EBS-150 pump as the lead pump. This electric-driven unit is designed to handle the bulk of the wastewater flow, has a quiet operation and low emissions, and is equipped with a VFD (variable frequency drives) control panel to adjust the flow or pressure based on the demand. To complete the dual-pump system, the crews used a diesel-driven 8JSCE-DJDST-45H-MC as a backup to ensure redundancy. This pump was placed on automatic controls to allow it to start immediately if there was an issue with the electricity or if the flow exceeded capacity. The bypass system also integrated a high-level alarm system to monitor wastewater levels and provide real-time alerts if levels approached capacity.
RESULTS
The dual-pump setup provided a reliable sewer bypass throughout the six-month construction of the new lift station. By using the electric pump as the primary unity, crews were able to reduce noise and emissions, and the diesel backup with auto controls provided an essential layer of protection to ensure system reliance. This proactive approach allowed Evansville to upgrade its wastewater infrastructure without service interruption while maintaining community satisfaction.
About Thompson Pump and Manufacturing Company:
An ISO 9001 Certified company, Thompson Pump and Manufacturing Company is an award-winning, full-service manufacturer and provider of high-quality, high-performance pumps, pumping equipment and engineering expertise for bypass pumping, dewatering, mining and flood control. Thompson Pump defines what is “state-of-the-art” in the industry and is dedicated to producing new and innovative dewatering and construction pump products. Family-owned and operated for more than 50 years, Thompson Pump continually seeks innovative and creative talent to join the team. For more, visit thompsonpump.com.
