• InfoWater Pro

Troubleshooting EPS run warnings

Troubleshoot and solve some of the warnings that may occur after an EPS has been run.


Step-by-step:

Learn why your InfoWater Pro simulation ran successfully or failed to converge to a solution. There are settings, messages, and reports that can help you to fix errors and run better simulations.

TIP: Keep a design log of all your simulations, so you can refer back to it when similar issues occur. The more models you build, the easier these errors are to resolve.

The Run Manager provides a color-coded stoplight as a visual reference to know the status of your run simulation.

The Run Manager, with the Standard tab active

A presentation slide showing the green stoplight indicator with explanation, the gray stoplight indicator with explanation, and the Run Manager

A green stoplight represents a good run of your simulation. You did not receive any warnings.

A presentation slide showing the gray stoplight indicator with additional explanation, and the Run Manager

A gray stoplight indicates that your simulation did not run at all; no output was produced due to bad or missing data. Review any popup messages and the Message Board for errors. Error messages indicate the key data IDs of elements to fix.

A presentation slide showing the red stoplight indicator with explanation, and the Run Manager

A red stoplight indicates that your simulation failed to converge to a solution. You need to reconfigure your simulation for it to run correctly. There are multiple possible reasons why the model did not solve.

Changing convergence settings can help a model converge.

  1. In the Run Manager, click the Standard tab.
  2. Click Simulation Options.
  3. In the Simulation Options dialog box, click the General tab.
  4. Adjust the Convergence Criteria settings:
    A presentation slide showing the Simulation Options dialog box and suggested fixes from the options listed there
  1. Click the Advanced tab.
  2. Additional settings that may help solve convergence issues:
    A presentation slide showing the Simulation Options dialog box, Advanced tab with a list of suggested fixes

To research and resolve simulation failures, view the full Hydraulic Status Report:

  1. In the Run Manager, Standard tab, click the Report Options Browse () button.
  2. In the Simulation Report dialog box, set the Hydraulic Status to Full, so that the status report includes information from each trial of each hydraulic analysis. This level of detail is useful for de-bugging networks that become hydraulically unbalanced.
  3. Enable Generate Network Summary Table.
  4. Enable Generate Warning Messages.
    A presentation slide showing the Simulation Report dialog box, with suggested fixes from the options listed there

After a successful or failed run:

  1. Click the Report icon to open the Full Hydraulic Status Report:
  2. To de-bug or troubleshoot failed simulations, search for "warning" and "caution" in the report.
  3. Investigate each warning and caution message by the element ID.
    A presentation slide showing a portion of a Hydraulic Status Report, with a list of things to look for in the report

    A presentation slide showing the yellow stoplight indicator with explanation, and an example of a tank fill simulation

A yellow stoplight indicates your run did not meet the standards of a good simulation. Review and potentially fix the warning messages found on the Warnings popup or Message Board:

  1. Troubleshoot using the partial output found in the Full Hydraulic Status Report. Look at the last hour and other key areas to diagnose why the run did not complete.
  2. A simple test is to add all tanks into a Domain and use a Tank Group Graph on the Domain. Tanks going 0% or 100% full just before run failure indicate where the issue resides. Review the controls for the elements that are draining and filling those tanks for errors.