Originally Posted by gdubya
Tom,
Thanks for the prompt reply.
I am saying aluminum because the machined face is grooved like an lp. If it were stainless, I wouldn't expect to see the machining grooves. Also, when I hit it with a hammer :), it dented. However, it may be something other than aluminum.
The trap is a cast metal. It appears to be brass. It has a seam and it has a rough cast appearing exterior.
The drain transition to the trap is cast iron. The transition from trap to drain pipe is a pvc fitting with threads to the trap with some kind of compound to seal the threads.
Nothing in this house surprises me. I have already cut a hole in the ceiling to verify this connection, so I am prepared to cut the pvc, use a 2 - 1 1/2 bushing to the trap, because I don't have enough clearance for a 2" trap. I will then use another bushing off the trab to the stub which will connect to my new drain with a compression fitting.
Naturally, if I could avoid the new trap, I would do that, but I don't see how I can get the old drain off the old trap.
Thanks again....you guys provide a valuable service.
gw