Hi All,

Can plastic drain pipes be plugged into iron drain pipe fittings? (I am actually not sure it is cast iron. It is Iron with rubber seals between iron pieces) I do not think I have enough space to use No-Hub connectors. I could probably easily unplug an existing 3" and an existing 2" iron pipe from an iron Y. Also, if plastic can indeed be plugged into the iron Y fitting, can one still buy the rubber seals that connect the iron pipes (to be on the safe side)? I worked with plastics drains on many occasions but am somewhat new to iron drain pipes.

Thanks,

Greg

OK, I am a little smarter now. The pipes are indeed cast iron with neoprene donut seals. I could find some seals in Home Depot, I hope they will fit. However my question still remains: Can I plug a plastic pipe into these donut seals inside the cast iron pipes?
Thanks,

Greg

Yes, bevel the pvc so it slides easier and use soap for lubrication.