Hello Hari, There are no red user notifications and the results converge, so the setup should work. You have notifications related to lost subsurface flow, but these are for the catch basins that are set up to have a very little captured flow, so that is expected. The high spread values appear to be for the gutters where there is little captured flow, so this is not a surprise as well. I checked FlowMaster for one of the gutters (GU-3) and it appears have similar results compared to StormCAD. Was there a certain gutter you checked that was different? As for the automated design results, StormCAD uses a set of design priorities . The order of these cannot be changed by the users. It is possible that a lower priority is violated to keep a higher priority item from being violated. Applying changes manually is often required after running the automated design. As noted in the Help topic "Design Considerations": "As with any automated design, the program's design is intended only as a preliminary step. It will select pipe sizes and pipe invert elevations based on the input provided, but no computer program can match the skills that an experienced engineer has. The modeler should always review any automated design, and should make any changes required to adjust, improve, and otherwise polish the system." While you can run the design again, that will be up to your engineering judgment. If you are happy with your adjustments to the automated design run, performing an analysis should be sufficient.
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