Sewer Amusement

Sewer Amusement

24. Sewer AmusementThese data are from a flow monitor installed on one of three interceptors arriving at a wastewater treatment plant (WWTP).  This unusual and entertaining pattern was created during…

Sewer In The News

Sewer In The News

23. Sewer in the NewsThis scattergraph is a hydraulic mother lode showing three distinct hydraulic events.  This flow monitor was installed in a 15-in sewer located just upstream from four…

Hydraulic Hysteresis

Hydraulic Hysteresis

22. Hydraulic HysteresisThis scattergraph displays data from a flow monitor installed in a 21-in trunk sewer.  During wet weather, backwater and surcharge conditions are observed in a distinct manner referred…

Knife Gate Valve

Knife Gate Valve

21. Knife Gate ValveA satellite collection system discharges wastewater to another agency through a 27′ sewer for subsequent conveyance and treatment. The observed minimum and maximum dry weather flow rates…

Inverted Siphon

Inverted Siphon

20. Inverted SiphonThis flow monitor is installed in a sewer just upstream from an inverted siphon comprised of two 8-inch barrels.  The incoming sewer has a design capacity of 2.7…

Pump Station

Pump Station

19. Pump StationWhen operating in backwater conditions caused by a pump station wet well, flow monitoring data follow and iso-Q equal to the pumping capacity.  This monitor is located upstream…