Relocating a kitchen sink to an exterior wall, I'll be building a 2x4 half-wall against the brick in which to run plumbing. I'll then install cabinets in front of that wall.
Which layer to drywall? I could drywall the brick and furring, or the stud half-wall, or both?
Also note that there'll be an outlet under the sink and a whip for the dishwasher.
I intend to use greenboard FWIW.