P Trap replacement

[Mfellows]

My moms house was built in the mid 60s and has copper DWV, except for the main stack. I am going to install an Insinkerator Evolution Compact to replace her old unit and was thinking I should do something with this trap (which some of you guys who do this for a living might have seen before?). I know I can use a 1-1/2 inch copper DWV C x SJ Trap Adapter, but I was hoping for a cheaper solution like a Fernco adapter. If so, can you suggest the proper adapter to connect 1-1/2 inch copper to a 1-1/2 inch PVC trap?

 

[Terry]

I can't see what is behind the trap, but it may be 1-1/2" galvanized. You can use a new tubular trap to the male threads with a slip joint nut and washer. Sometimes you need a new nipple from the wall.
If it's copper, they do make a copper x plastic mission coupling that will adapt to a trap adapter.

 

[Sponsor]

 

[Mfellows]

I'm fairly certain it's copper, this picture might provide a better view

 

[Terry]

Then something like these in the right size would be an easy fix.

And into a spigot trap adapter for a tubular trap.

 

[Mfellows]

Terry, thanks! I was thinking the trap would attach directly, but the spigot trap adapter makes it even easier.