Use the House Connection Creation workflow to connect the house connection to the main pipe with a generated straight pipe or a pipe you create.
You can digitize an armature on the main pipe at the position where the house connection is attached to the main pipe and add a valve on the pipe.
If you do not create an armature, the system creates a fitting at the location where the house connection is attached to the main pipe. This behavior is controlled by a feature rule, see Feature Rule: Create Start And End Nodes.
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.