Hi, in my garage I had the remains of an old unused cast iron stack that I now want to connect a toilet and sink to that are situated in a room above the garage. My plan was to cut the top off and fit a coupling to it and then do the rest in PVC but now that I have gone to do it, I have found that the pipe fixing was loose in the wall and also where it went into in the ground. I have just lifted it out and now I am left with a clay bend that is cemented into the garage floor. What is the best way of connecting the new PVC stack to this clay bend? The connector on the end of the bend is intact apart from a small piece that has broken off. Thanks Steve