Applies To Product(s): Bentley SewerGEMS Version(s): 08.11.02.75 Environment: N\A Area: Calculations Subarea: N\A Original Author: Terry Foster, Bentley Technical Support Group Problem Why is the Flow (Out to Links Maximum) not equal to the Flow (Total in Maximum)? Product: SewerGEMS V8i Version: 08.11.02.75 Area: Analysis/Computation, Problem ID#: 71822, GENERALINFORMATION See Also: Flow (Total In Maximum), Flow (Out to Links Maximum) Solution A manhole is a storage element (like a pond), so the flow in may not always equal the flow out, but the volume in should equal the volume out (accounting for change in storage between start and end and overflow volume). Take a look at the Hydraulic Reviewer tool, since this shows the mass balance based on volume for all storage element types (including manholes). Make sure that you account for any overflow, too. If there is a large %deviation (continuity error) for that particular manhole in the Hydraulic Reviewer, it means that the model is unstable and you may need to tweak the calculation options to get better results. See Also
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