Another option is to install a Saniflo plumbing system above the existing concrete slab. Most of the plumbing lines can be hidden in the new lavatory walls, but the drain lines will be exposed.

If you've chosen to install a concrete countertop, then you have another big decision - precast or cast-in-place? Here's what ...

It's faster and less costly to install precast concrete walls, gates, and fences than conventional materials, such as wood, bricks, blocks, or poured-in-place concrete.