SewerGEMS General FAQs

This is a list of articles containing general FAQs for Bentley SewerGEMS.

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Import and Export

How to export a selection set to shapefiles

How to export model elements to shapefiles

Submodel Importing and Exporting



Customizing FlexTables for viewing and reporting data -- Moving, adding, and removing columns

How to filter a FlexTable by Query, Selection Set, or by selecting from drawing pane for reporting, global edits, etc.

New Flextable features in (Water products) and (Storm/Sewer products)



Can I restore a backup file of my model project?

Property grid, Element FlexTable, or other dialog will not open

Why do I keep getting prompted to compact the database when I open my model? What does this mean?



Active Topology Management

Are minor losses from pipe bends automatically considered?

Building A Model Using ModelBuilder

Changing symbol size, text height, or line width for elements in a model

Element label editing and automatic numbering

How can I export my GIS-ID's to a shapefile?

Importing a CAD (DXF) Drawing Using Modelbuilder

Inserting or laying out pipe bends

Modifying and adding entries to Engineering Libraries

My controls aren't being followed. What's going on?

Scenario and Alternative Management

Setting Boolean (True/False) Fields using Model Builder

Should I use the inside diameter or outside diameter for the "diameter" field for my pipes?

Updating A Model Using Model Builder

Updating Source File Using Model Builder

What is the asterisk column in the Alternative Editor Dialog Box used for?

What is the difference between a Simple Control and a Logical Control? What is the difference between simple and logical controls?

When importing a submodel, why do my new elements turn inactive and old elements change their attributes to the defaults in the new scenarios?

Why are there 2 entries for the same alternative in the dropdown menu in the properties of a scenario? One with an "i" and one without it.


Output and Reporting

Changing drawing style for better viewing of element symbols and annotations

Changing the default property values when creating model

How can I find the total volume of water through a certain element?

How can I remove or display pipe flow arrows?

How do you add color coding or annotation to an element?

Using Fit To Page Printing In The Standalone Platform



When importing a DXF as a background, it does not show up in the model, even when pressing zoom extents.

Why aren't known flows adding up?

Why do I see residual mouse trails (visual artifacts) left behind when moving things in the drawing pane?

Why do I sometimes see a negative flow through a pipe?

Why does flow or velocity sometimes decrease when moving downstream?

Why does the hydraulic grade line at my outfall start at higher elevation than the user defined tailwater I entered?

Why is it that no matter how large the inlet on grade is the gutter spread always remains the same?

Why is the HGL reset to rim elevation for flooded structures?

Zero overflow at manhole despite HGL above rim.


See Also

SewerGEMS Product Information

SewerGEMS TechNotes and FAQs

OpenFlows Product TechNotes And FAQs

OpenFlows Water Solutions on Bentley Website

  • Created by
  • When: Thu, Nov 17 2016 2:15 PM
  • Last revision by Bentley Colleague
  • When: Mon, Sep 20 2021 6:15 PM
  • Revisions: 17
  • Comments: 0