Use the Fire Hydrant Creation workflow to create fire hydrants that are connected to the main pipe with a generated straight pipe or a pipe you create.
You can also digitize an armature on the main pipe or a valve on the pipe.
If you do not create an armature, the system creates a fitting at the location where the pipe is attached to the main pipe (feature rule).
If you choose Straight Pipe you are prompted to select the main pipe in the drawing. The connection is created as an orthogonal projection on the main pipe.
When you are finished creating geometry, the feature class form is displayed so you can add attribute data.