Single to double bathroom plumbing

[Kenzie133]

Hello!

You guys helped so much when I did my kitchen sink. I’m back for help with my upstairs bathroom. It was originally a single sink and I want to convert it to a double. The for picture is the original plumbing. The second picture is what I was planning on doing. The third picture is also what I thought I needed but I’m not sure.

 

[wwhitney]

Either 2 or 3 works. In 2, the new fitting should be a 2x1-1/2x1-1/2x1-1/2 double fixture fitting, e.g.

https://www.supplyhouse.com/Spears-P500-241-2-x-1-1-2-x-1-1-2-x-1-1-2-PVC-DWV-Double-Fixture-Fitting

3 looks tight as far as stacking all the fittings without moving the cleanout down or the existing san-tee up.

To connect the new work into the stack between fixed ends, use (2) banded rubber couplings, e.g. Fernco Proflex or Mission Rubber BandSeal.

Cheers, Wayne

 

[Sponsor]

 

[Kenzie133]

Either 2 or 3 works. In 2, the new fitting should be a 2x1-1/2x1-1/2x1-1/2 double fixture fitting, e.g.

https://www.supplyhouse.com/Spears-P500-241-2-x-1-1-2-x-1-1-2-x-1-1-2-PVC-DWV-Double-Fixture-Fitting

3 looks tight as far as stacking all the fittings without moving the cleanout down or the existing san-tee up.

To connect the new work into the stack between fixed ends, use (2) banded rubber couplings, e.g. Fernco Proflex or Mission Rubber BandSeal.

Cheers, Wayne

Thank you! That’s the exact piece I was looking for but kept coming across, 2x2x1-1/2-1-1/2.

 

[wwhitney]

Thank you! That’s the exact piece I was looking for but kept coming across, 2x2x1-1/2-1-1/2.

You can use the 2x2x1-1/2x1-1/2 if it's easier to get, just stick a 2x1-1/2 bushing in the top hub.

Cheers, Wayne