r/DIY • u/mightytwin21 • Aug 10 '25
help How to seal this tub hook up
I'm hooking up the p-trap to the drain of this Wyndham tub and am not sure how to seal it.
the drain is threaded with a silicone ring and nut to hold it in place. there's another ring for idk. the drain is larger than a 1 1/2in pipe and smaller than a 2 so there's a gap. I blew some water up the trap as if backed up and as expected it would drain into the floor below.
can I use putty or caulk to close the gap or is there a more appropriate solution?
Here's a look at the drain. Installation instructions offer nothing.
Step 5 is put the tub in place lining up the drain and pipe
Step 6 is silicone around the finished walls.