The following rules and considerations govern the importing of pressure pipe elements from SWMM:

Import Rules

1. All Conduits of the type "force main" will be imported as pressure pipes regardless of their position in the SWMM network.
2. A SWMM junction is converted to a pressure junction if all bounding links are pressure links. Pressure links are as follows:
3. Conduits of shape "force main".
4. SWMM pump links.
5. If a catchment is emptying into a SWMM junction, that junction will be turned into a manhole regardless of its position in the system. A user notification will be generated.
6. On the import of a SWMM pump link, two links are created to connect the pump node to the system:
7. If the discharge node is a pressure junction - two virtual pressure links are created;
8. Otherwise two virtual conduits are created.

Pressure Pipe Considerations

• Diameter directly translates.
• The roughness value will be entered into Manning's, DarcyWeisbach, or Hazen Williams depending on which SWMM Pressure Roughness method is selected in the calculation options.
• "Number of Barrels" data is NOT imported.

Presssure Junction Considerations

• The invert directly translates.
• Inflow and Sanitary Flows are directly translated.
• Ground Elevation will equal Max Depth + Invert
• RDII flow data will NOT be imported.