If its 35 yrs. old you would be better served to replace it. If you want to replace it with the same thing you would have to dig it up in sections, put it down deeper, and wrap it in asbestos to keep dirt/debris from falling between the sections of pipe. I think PVC would be better.: I have Orangeburg sewer pipe in our 35 year old house. : It may be failing. What do you know about this type : of pipe? What kind of repairs can be made to it? Must : it be replaced? And so on …
