Now that the forms are in place for the foundation and a survey has shown them all to be in right location, work has begun to deal with underground plumbing. The existing house had one bathroom and a washer connection in the garage. Of course we’re moving everything around so none of the plumbing associated with those or the kitchen are of any use. The new house layout includes the guest bathroom, the utility room, a powder room, and part of the kitchen in the existing structure. All of these will need plumbing underneath the existing foundation. The third bathroom and a sink in the workshop will be on the new foundation so the plumbing for those will be much easier.
Currently the plumbers have been cutting out existing foundation to location plumbing under existing foundation. So far they’ve got quite a bit of the guest bathroom done and have the “tunnel” over to the utility room and powder room. It seems to be hard/tedious work - we don’t envy them at all.
Below you’ll find a few pictures of the work so far.
Guest bathroom plumbing. The big pipe to left will be for the toilet. The smaller pipe coming off that will head over to the vanity and wet bar (on the other side of the bathroom wall). The cavity above the big pipe will be the drain for the shower. It’s hard to tell, but the pipe running up/down-ish in the photo runs outside the house (towards top of photo) to the new sewer lines they’re installing to replace the old cast-iron stuff. It also runs across the hallway towards the utility room and powder room at the bottom of the photo.
The cavity at the bottom of the photo is where the washing machine drain will be. You can also see where they’ve cut through the top layer of foundation underneath the wall in the middle for the powder room. That will ultimately be the same depth as the washer drain and the guest bath work. Both of these will connect over to the guest bath on the way out to the main sewer.
Once the underground plumbing has wrapped up, there will be a city inspection followed by some underground electrical work for the living room floor and kitchen island. We assume there will be an inspection for the electrical work also (It’s possible they just run conduit - we don’t know). Finally, the steel rebar will be installed (along with rebar connections into existing foundation). Once all that’s done, we will then get concrete. We assume we’re at least several weeks away for that.