Hi, I need to move my toilet for a bathroom renovation, and this requires moving the soil line from the toilet to the stack. Both the stack and run to the toilet are cast iron. The opening I've made in the floor boards will not accomodate a large pipe cracker, so I thought I'd try and simply disconnect the line from the toilet to the stack and replace it with ABS or PVC. The current joint is lead over oakum, I assume. Can I just melt the lead, chisel out the oakum and disconnect the pipes? And assuming this is possible, can I connect the plastic with the cast iron easily using a no-hub coupling? (the branch coming off of the stack is the bell-end, so it's wider than the
4-inch pipe. Is there an adapter I can get from a plumbing supplier? Thanks so much for any help you can offer.Andrew