I cut open the drywall on the opposite side of my kitchen sink to change the pipes, so I wouldn’t need to disturb the cabinets or countertop. These pipes come up from basement and are inside one stud bay:



I am struggling now trying to figure out how/what to strap these to, to give them some strength against pushing in or out.

The blue box in there is an electric outlet feeding the dishwasher and disposal under the cabinet.

My best idea is to try to put blocking across between the studs and then strap to that, but that pvc drain is 2” so there’s not enough space to get by.

Anyone done anything like this before? THANK YOU

Is this a 2X6 wall?

Seems there is enough room to slide a piece of 2X4 right below the top elbows of the copper and above the branch of the sanitary tee. I would have done that before the tee is glued in but now it's tricky.

If 2X4 is too thick, measure how much room you have and use a table saw to shave off the entire piece, or just chisel off enough around the 2" pipe with an OMT tool.

You might need to open more of the drywall to expose both studs enough to slide the piece under there. Toe nail the piece to existing studs or use angle brackets.

2x4 wall. I need to open it up to the studs anyway to be able to get a nice solid mount for the patch piece... good idea about notching it, let me measure and get more details.

And yes I didn’t think about securing it before gluing and soldering hahaha

a piece of strapping against the sheetrock and a couple of bell hangers.
you can secure the strapping with screws thru the cabinet back wall.
shim between the hanger base and the strapping as needed.

I did what Sum suggested... it worked! Used a 2x4 and just notched it with the skilsaw. Then I used some leftover straps as suggested a couple weeks back for joist notches:

nice job..