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TRANSCRIPT
2019 Collections Seminar
Pump Station Design and Troubleshooting Considerations
October 16, 2019
Joseph Moore, P.E., DuBois-Cooper Associates, Inc.
Today’s Sewage
When did the sewer turn into a Trash Can?
We need to change the Narrative
Available Solutions
• Solids handling pumps / Chopper pumps /Grinder pumps / Cutter assemblies / Pre-Rotation
Available Solutions
• Pump power monitoring / reverse impeller rotation
Available Solutions
• Trash basket on inlet sewer
• Grinder on inlet sewer
Available Solutions
• Screen
• Bacteria or Enzymes Treatment
Available Solutions
• Public Education / Source Control
• Public Education / Source Control
Pump Station Design Considerations
PUMP SELECTION
PUMP SELECTION
Pump Curve – ‘Steep Curve’
Pump Curve – ‘Flat Curve’
Wet Well Inlet Design / Air Entrainment
Play Video
Self-PrimingPump
PrimingCycle
Static Head DischargeCheck Valve
Air Handling Valve
Vent to Atmosphere
ARVLine
Suction
Discharge
SUBMERGENCE / VORTEXING
Pump Station Troubleshooting
My Pump Is Not Pumping – Why?
Potential Issues
Troubleshooting Tools
Cavitation
Implosion Force of 100,000 psi
