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Flow Measurement

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Flow measurement is a missing link in computing why septic systems may fail. The impact of inflow and infiltration can be challenging when calculating the estimated flow on a sewer system. The actual flow may be further impacted with wet weather events and its impact may be ignored. Measuring flow should indicate a state of hydraulic overloading if evident in the performance of any septic or sewer system. The importance of knowing anticipated sewer flow can gauge potential problems. Daily flow can exceed the system design capacity, resulting in frequent sewer backups or puddling of sewage onto the ground surface. Sanitary sewer overflows are evident in cases where potential problems are compacted with additional flows. Values for estimated sewage flows will be compared. Inflow and infiltration are often not considered when sizing an onsite wastewater system or sewer collection system. Several solutions to measure gravity sewer flow accurately will be discussed.

Keywords: Anticipating sewer flow to gauge potential problems; Benefits of measuring sewer flow; Estimating Sewage Flow for design and repair; Exfiltration; Flow Volume Comparison; Identifying the Problem; Inflow and Infiltration; Solutions; Waste Strength; Wet Weather Events

Document Type: Research Article


Publication date: January 1, 2009

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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