I discovered a galvanised(i think) 2" pipe with corrosion causing some leakage into the crawl space. When I was looking to splice in some pvc I found that the connection for this line where it enters the main sewer line had basically corroded away. Is it acceptable to cap off that bad spot on the main line and run the 2" to a shower drain just above the point of entry to the main sewer line? I'm hoping for a temporary quick fix that will buy us some time until spring. Then we could use our camper for a bathroom while a more permanent fix is implemented. I'm also considering running pvc to the current broken spot and just slightly sticking it in as there is still some of the old connection remaining, then sealing it up somehow, rubber tape, caulking, whatever I can get that may work. The broken 2" line is draining the kitchen sink and clothes washer.