Plumbing – How to install a vanity over this unfortunate plumbing

bathroomplumbing-fixturevanity

I have recently removed a vanity from my bathroom and am facing an unfortunate plumbing footprint when trying to put a new vanity in place.

The cold water line runs right against a built in cabinet which I would like to keep in place and the drain for the sink is also the drain for the bathtub in the upstairs bathroom. So the drain pipe actually comes out of the wall and then into the floor.

My question is will I be able to remove enough material from a new vanity to fit it in this space or will I compromise the structural integrity of the vanity I am trying to install.

The previous vanity that I removed was custom built to fit in the space, ie extra pieces of wood were attached to an old piece of furniture and a piece of marble was cut for the counter top. Believe me it sounds nicer than it looked.

Here is an image of what I am dealing with.

Photo from above
Photo from floor underneath

Best Answer

Cut that pipe out in 2 places. One place is above the bottom shelf of the new cabinet and mid way between the 2 fittings on the upper pipe that goes at a 45 degree angle. Recouple it back together when the cabinet is installed. The supply lines need to be relocated too, but you may be able to move them around to get past their issues.

The cutting of the vent pipe is still taking a small chance it will be difficult to get the pipe back together. As it is you will need to shorten the pipe you cut out at least by a 1/2" to make room for the stop built in as part of the coupler. You will also need to account for how much out of square the cut has too.

If the upper portion of the pipe has a little upward give to it, it will be a lot easier to rejoin. If not you will need to be really assertive on getting it back together again.