I am building a bathroom with toilet on the upper floor of my home. I need to know how to run the piping so as to connect into the existing sewer pipe in the basement.I have never piped in a toilet so need to know exactly how to connect the toilet to the waste pipe, pipe size, gradient required, how to vent this pipe, how to connect a shower and basin drain into this pipe and lastly and most importantly how to connect into the existing sewer line in the basement.This is partially embedded in the concrete floor but there is a cleaning elbow on the surface. Is it possible to remove the cleaning plug and pipe into this but also provide a new cleaning elbow in this new line.The other possibility is to connect into the existing cast iron sewer pipe that is exposed before it disappears into the concrete slab.Your help would be very much appreciated.

This should be moved to the Plumbing Page where other experts can see. I do not have the authority to move posts on this page so I'm going to copy and past it up where it belongs. Find your answer there. Regards, Tom