We have an 1892 kind of renovated brick house. Our double kitchen sink stinks because it has no trap, and the waste drain is vertical beneath the sink drains. I don't know how to even put an s-trap (I know not to code) or p trap without the space, or try AAV or cut the wall and vent outside with some weird drain arrangement.
There is a joist which prevents easily getting a pipe at the back where it is supposed to be. I don't want to just hash it again like the previous owners did, but I have no idea how to do it as "proper" as possible with the limitations in place.
after 10 posts I can submit pictures which I am sure would be far more useful than my description