EditorialCornell Centrifugal Pumps Solve Ragging Problems In A Washington Pump Station Cornell Centrifugal Pumps Solve Ragging Problems In A Washington Pump Station Research and development at a Washington pump station solves ragging problems and reduces electrical costs by 50 percent. Appeared in print as "Spinning Free" By Scottie Dayton January 2015 How We Do It - Wastewater Order Digital Reprints Want a PDF of this article as it appeared in print? Order Here! Filed Under Cornell Pump Company Impeller Sign Me Up! Join your colleagues who already get great content delivered right to their inbox. Sign up Digital! If you don't want to bring your iPad into the bathroom, we can send you a magazine subscription for free! Subscribe to Print! Five variable-speed model 8NHTA 250 hp centrifugal pumps from Cornell Pump serve the 18 mgd (design) 117th Street Pump Station in Vancouver. Pump No. 1 (foreground) ragged up in two hours even when run constantly at 100 percent speed. Severe ragging plagued the 18 mgd (design) 117th Street Pump Station in Vancouver, Wash., from the day it entered service in 2008. The station, built to handle the city’s future growth, has five variable-speed model 8NHTA 250 hp centrifugal pumps from Cornell Pump. Each... Please login or register to view TPO articles. It's free, fast and easy! Popular Stories September 10, 2024 Peristaltic Metering Pumps Explained: Facts, Function and the Right Application September 10, 2024 How to Break Up FOG and Significantly Reduce Lift Station Maintenance September 10, 2024 Rotary Screw Blowers Packages in Treatment Plants September 10, 2024 See the GridBee AP500 Wet Well Mixer in Action: Before and After Comparison September 10, 2024 Automated Drying Process Lowers Operating Expense and Minimizes Operator Attendance September 10, 2024 Improve Chlorine Disinfection with Online DPD Analyzers Discussion Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted. Please enable JavaScript to view the comments.