I have a new tub that came with the drain & overflow pre-assembled, but no tailpiece. I found a plastic tailpiece for $5 and I would like to know (1) if it's OK to use on this drain and (2) how to install it correctly. (The tailpiece packaging just says "plastic"; can I assume since it's black that it's ABS?)
The drain itself looks like brass. I have access underneath the tub, so no problem there.
The tailpiece came with a nut and two washers. Is this how I should fit them together (see photo)? Should I apply putty or anything else (I think not)? I tested just the nut on the drain, and it seems like a snug fit. [EDIT: When I try to assemble everything as shown, it doesn't fit because the nut threads can't reach the threads on the drain. So basically, I have no idea how to connect this tailpiece.][EDIT #2: After watching a YouTube video "How to replace a sink tailpiece" (StackExchange won't let me link directly), I removed the extra washer that I had slid down the tailpiece. See the red X's on the photos. Now it fits. Hopefully there won't be any leaks. Comments are welcome!]
Then of course there is the P-trap. I'm just planning to slip the tailpiece into the adapter and tighten. I'll probably shorten and debur the tailpiece first, though.
Does this all look OK? Would a brass tailpiece be safer (less likely to leak)? I'd like to avoid problems as much as possible. Thanks so much for any advice!