I believe that there is the rough-in for a toilet in my basement – how do I tell if it’s for a toilet or the clean-out? Is there a difference? I also want to install a wash-basin there is a DWV a few feet from the area that would be ideal – is that a good idea? I have photos of the area to email to people if that would help? Thanks in advance for your help.
The key is going to be the vent. Obviously a vent will not be required for a cleanout. It must be within 6′ of the closet bend, and often enters the bend itself (vented closet elbow).