Don’t Get Caught With Your Pumps Down: Using Analytics to Improve Pump Reliability and Performance

Mike Bernard (Article 1: CEU = 0.1 DW/DS/WW02015420)

1. The analytics platform revealed that the Citico pumps were under-performing due to a. a malfunctioning variable frequency drive. b. improper pump selection. c. unanticipated high head conditions. d. impeller deterioration. a. Discharge lines were pigged. b. Downstream air release valves were repaired. c. Minimum speed set points were increased. d. Motor horsepower was increased. a. Periodic manual cleaning b. An influent screen c. Periodic pump cycling d. Reversal of pump rotation a. Impeller wear b. Algae buildup on suction strainers c. Perched air bubbles in downstream piping d. Discharge piping sediment

2. Which of the following corrective actions was taken to correct the pump operating speed at the Carrboro, N.C., station?

3. _________________ is often enough to remove a majority of foreign material from the pump impeller and improve pump efficiency at the Chattanooga site.

4. Which of the following was not identified as contributing to a loss of pump efficiency at the Texas raw water pumping station?

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(561) 625-4858 providing the following information: a. Hazen b. Barringer-Nelson c. Total Efficiency d. Best Practice

5. The _________________ curve demonstrates that operating pumps outside their preferred operating range significantly reduced pump life.