I have a 2 1/2 cast iron pipe that runs from where the sewer enters the basement runs half-way across the basement through the wall to the roof. No sinks, showers etc are attached to this. There's 2 clean-outs 2 ft from where this pipe is located and the main 4" line also goes to the roof also. I need to either remove or move this line as it's in the way of alot of projects. I'd really like to cut it off and cap it but I can rerun in a better location if need be. Unless it's old code I don't see why it's needed. Opinions?