Type the command 'plumbing' in the command line, then it will prompt with 4 options.

1. Pipe-size
2. Draw-pipe
3. Fittings
4. Exit

Select option 1 everytime to change the pipe size.

Select option 2 to draw a pipe.

Select option 3 to draw fittings.

Select option 4 to exit.

The installer that ran when you downloaded this plug-in from Autodesk App Store has already installed the plug-in. You may need to restart the Autodesk product to activate the plug-in. To uninstall this plug-in, click Control Panel > Programs > Programs and Features (Windows 7/8/8.1/10) or Control Panel > Add or Remove Programs (Windows XP), and uninstall as you would any other application from your system.

Fittings are available only for PVC.