What is the most logical next event?

How to clean a sink trap
Remove any sink stoppers.
If your stopper has a pivot rod, then you will need to remove this to remove the stopper. Look under the sink and locate a locking nut where the pivot rod goes into the drainpipe.

OPTIONS:
a). If you find a locking nut, remove it quickly and place it back into the sink. Repeat this process on all of the faucets you want to clean.
b). Unscrew the nut, pull out the rod, and remove the stopper. Then screw the nut and rod back in place without the stopper.
c). You may have to pry up the locking nut to pull it up. Once the nut comes out, you can attempt to loosen it by turning on the faucet over the sink.
d). This nut will probably be in the other direction. Slide your sapwood spanker bit, or manual wrench, or any other kind of counter- locking implement into the locking nut and pull it out.
b).