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  • Courant Stability Criterion

    Hello, I am currently working on the construction and modeling of sewer networks using SewerGems software version 10.03.04.53. As a requirement of the client I have been asked to verify that the results obtained in the modeling comply with the Courant…
  • Assign elements and annotations to specific levels when a project is attached to a DGN in MicroStation

    Applies To Product(s): WaterGEMS, WaterCAD, HAMMER, SewerGEMS, SewerCAD, StormCAD, CivilStorm, PondPack Version(s): CONNECT Edition, V8i Environment: MicroStation Area: Layout and Data Input Problem…
  • How does the Interconnected Pond Modeling (ICPM) algorithm work

    Product(s): PondPack, SewerGEMS, CivilStorm Version(s): CONNECT Edition, V8i, V10 Area: Modeling Problem How does the Interconnected Pond Modeling (ICPM) algorithm work in PondPack, SewerGEMS or CivilStorm? (when selecting…
  • POS- Tailwater Type

    Hello, My network is having interconnected ponds and a outfall. Arrangement is as shown in the below figure. For POSs, I have assigned weirs. My question is , is it correct if I set the tailwater type for POS-1 to interconnected ponds and…
  • "forms loop..." Error when attempting to compute model with pressure subnetwork

    Product(s): SewerCAD, SewerGEMS Version(s): CONNECT Edition Area: Calculations Problem When attempting to Validate or Compute a model with the GVF-Convex (SewerCAD) solver, the run fails and a user notification similar to…
  • Channel Cross section

    Hello, My network is having following arrangement (MH 1 upstream; O-1 is D/S). As I'm aware, the upstream cross section governs the cross section of D/S channel. When there is a MH as the starting point of a channel, what is the channel section that…
  • Calculate the difference between the conduit invert stop and the downstream manhole invert level?

    Hello , Currently I am using sewergems (connect edition update 3) and I want to calculate the elevation difference between the ( conduit invert stop level) and (the downstream manhole invert level for the same conduit) I tried you use user data extension…
  • The "Network Unbalanced" and "Cannot solve network hydraulic equations"

    I am using sewer gems to analyze an existing network along with a post development network, the system consists of gravity pipelines, lift stations and force mains and the all system discharging to an outfall, the steady state run is going well while…
  • Elements being added to the 0,0 coordinate in the MicroStation platform

    Product(s): StormCAD, CivilStorm, SewerCAD, SewerGEMS, WaterGEMS, WaterCAD, HAMMER Version(s): CONNECT Edition Area: Modeling Problem When adding elements manually in the MicroStation-integrated versions of the OpenFlows…
  • Unable to reopen model in AutoCAD integrated mode after attaching XREF

    Product(s): StormCAD, SewerCAD, SewerGEMS, CivilStorm Version(s): 10.04.00.158 Area: Other Problem When attempting to re-open a model in the AutoCAD integrated mode which previously had an XREF attached, the following errors…
  • Ability to customize profile annotation tables

    Product(s): SewerGEMS, CivilStorm, StormCAD, SewerCAD Version(s): CONNECT Edition, V8i Area: Output and Reporting Problem Can I customize the annotation table seen at the bottom of the profiles? (the screenshot below shows…
  • OpenFlows SELECT Entitlements

    OpenFlows SELECT Entitlements are specific features within a product that are only available to users with a current (active) subscription to OpenFlows products. There is no additional charge for SELECT Entitlements. To confirm you have access to OpenFlows…
  • SewerGems 10.03.04.53- Model Crashes when switching the Manhole's headloss method from Absolute to HEC-22 Energy ( Third Edition) with HEC-22 Benching Method Set to Full

    I am running a storm water model using the explicit engine and the runoff method utilized is EPA-SWMM Runoff. Once the headloss method is switched from Absolute to HEC-22 Energy ( Third Edition) with HEC-22 Benching Method Set to Full for the manholes…
  • "OpenFlows SELECT Entitlements Not Available" message when opening SewerGEMS or CivilStorm

    Product(s): SewerGEMS, CivilStorm Version(s): 10.04.00.108 and later Area: Licensing Problem When opening SewerGEMS or CivilStorm, a message is generated that says: OpenFlows SELECT Entitlements Not Available. OpenFlows…
  • SewerGEMS Existing and Proposed Conditions

    I am brand new to the world of SewerGEMS, so forgive me if this is too basic of a question for the forum. What is the best way to build a proposed network that ties into an existing network in SewerGEMS? As a basic example, in some areas, I have culverts…
  • Is it possible to report flow results on the 2D grid or along a given path?

    Product(s): SewerGEMS, CivilStorm Version(s): 10.04.00.158 Area: Modeling Problem Is it possible to report flow results on the 2D grid or along a given path? Solution As of version 10.04.00.158 (CONNECT Edition Update…
  • Editing X-Y coordinates in Flex Table

    Hello, I need to updated X-Y coordinates of my cross sections in the flex table. Though it is possible to change coordinates of individual CS, it is not possible to do it in flex table. How can I change coordinates of set of CS in one go? Thanks…
  • SewerGEMS crashing when running Critical Storm Analyis

    I am trying to run the Critical Storm analysis and it keeps crashing. We are using the latest version of the SewerGEMS 10.04.00.158 Any suggestions, please! Model files are also shared vide below link. SW Model Files
  • How to represent a regulator chamber in sewergems?

    In general, if I have something like this below. What would be the best way to represent this chamber in sewer gems? Is there some type of regulator chamber icon I use? Or do I use pipes and split them and put controls on them for the weirs? Any advice…
  • how to reduce continuity error in specific pond from model?

    I have run my model and received a very high continuity error in a specific pond in my model. My pond is going to an outlet structure and then an oufall somewhere else in the model is using that pond for a boundary condition. When i plot HGL, flow in…
  • Modelling of perforated pipes to exfiltrate the flow to soil

    Hello, I am trying to model system where the runoff generated will be captured by gullies and is exfiltrated into ground through perforated pipes running as a network. In this i have adopted the Pipe seepage loss in Explicit SWMM solver and tabulated…
  • Using the "Correct for Partial Area Effects" Calculation Option in StormCAD (GVF-Rational Solver)

    Product(s): StormCAD, CivilStorm, SewerGEMS Version(s): CONNECT Edition, V8i Area: Calculations How does "Correct for Partial Are Effects" work? The "Correct for Partial Area Effects" Calculation Option is available with…
  • Exporting Profile Annotation Table

    Product(s): SewerGEMS, SewerCAD, StormCAD, CivilStorm Version(s): CONNECT Edition Area: Output and Reporting Problem How can I export the information seen in the profile annotation table? Solution There are a few options…
  • Soakaway

    Hello, what is the difference between elevation area vs storage chamber in the seepage rates? if i’ve used the same seepage and the same dimensions , is there’s any difference in the seepage between both? Also what’s the best way to model such detail…
  • Volume results not available for outfalls and conduits in Properties or FlexTables, even though graphs will display results

    Product(s): SewerGEMS, CivilStorm Version(s): 10.04.00.158 Area: Modeling Problem It is possible to graph the volume results at an outfall in a SewerGEMS and CIvilStorm model. However, there is no numerical data in the Data…