I cant speak as to the pluming issue but as far as the concrete cutting
the slab needs to be cut through the whole way more than likely it is
6" thick maybe thicker if you are cutting in an area there is a grade
beam. If you do not cut through the slab completely you run the risk of
damaging the surrounding concrete. Also please note***** some slabs
have post tension cables in the slab check your garage for a stamp in
the corner or in the center of the floor. this creates a whole other
issue..any cutting of the cables voids the function of the whole slab..
Michael wrote:
We've made an offer on a house on a concrete slab down in Florida.
We've always owned houses with a crawl space. We want to move
around a few walls and make two bedrooms into one and make the
bathroom bigger. Also, we need to add some drains in the kitchen
for a sink in a different location.

I was a carpenter for many years, so I can deal with any issues
involved in shifting interior walls and their impact on loadbearing,
and I understand that I can get a concrete saw and carve in a new
drain, but how do I avoid plumbing that is already laid in the floor?
Do I need to get a detailed layout of where everything is in the
floor? If this doesn't exist, what do I do?

Thank you, Michael