Free Advice

Things I Do Not Advise:

Trying to learn enough about plumbing on the internet to solve your own plumbing issues.

Things I *DO* Advise:

Getting it done faster by just calling a plumber on day one. Especially because then you wouldn't have three days of dirty dishes, a dismantled sink and a plumber in your kitchen when a SURPRISE! real estate agent comes to show your house to a nice couple even though you have a text from YOUR real estate agent saying that they were scheduled for WEDNESDAY. Not Tuesday.

But at least you didn't have any dirty underwear on the floor or anything.

And at least when the nice couple asked you questions you were able to give friendly, positive and helpful answers. Except for that one where they asked you if you liked the neighborhood and you enthusiastically said YES and that you were thinking about moving to the building across the street when this place sells. (Which isn't a LIE, but you maaaaaaaaaay have neglected the caveat about "But no way in hell would I live street level again because of all the drunks who sit/do drugs/pee on my front steps" part.)

In any event, Project: Make the Water Drain Out of the Sink Without Manual Intervention is mostly finished.

Mostly.