To create a stub-in branch

1. On the ribbon, click Home tab Part Insertion panel Route Pipe.
2. In the drawing, click to specify a start point.
3. At the command prompt, enter st (STub-in).
4. Hold down SHIFT and right-click in the drawing area, click an object snap (for example: Perpendicular).
5. In the drawing, click to specify a point on the pipe header.