The Remove Pipe Text command is used to remove text from pipes that are drawn with inline text. See the Pipe Linetypes section for more information.
To remove the text from a section of pipe, go to
Ribbon: DM Plumbing->Pipes-> 
Remove Pipe Text
Pulldown Menu: DM Plumbing->Pipes->Remove Pipe Text
You will be prompted to identify the pipe section from which the text is to be removed.
Select pipe to remove text from:
The text will be removed.