When you add pipes in REVIT , the moment a pipe intersects with another the pipe fittings (elbow, tee, reducer etc.) are instantly included at the connection of the pipes.
Please add this same functionality to water pressure networks in Civil 3D .
On this topic...
I tried to use C# to create pipes in REVIT, hoping to see instant pipe fittings at the pipe connections .. but the current REVIT API does not provide the same instant fitting functionality as the REVIT manual pipe creation ...