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Question:
Where is a hydraulic seed file and how is it used?
Answer:
The hydraulic seed file is a DGN library which contains all the hydraulic design information you need to start a new drainage design. For practical purposes, it will usually be the same DGNLIB file which contains your drainage and utility feature definitions. The hydraulics seed is in fact, a fully functional drainage project that is copied to a new DGN file whenever a SUE command or StormCAD command is first used in in a new DGN file.
When you see the message box below notifying you that a utility project is being created, it is this hydraulic seed project which is being copied to the active DGN