It’s done. The final hurdle in the underground plumbing has been completed. Last week the plumbers installed the final bit of cast iron to connect our epoxy-lined sewer to the existing drain stack. All of the other underground basement plumbing was finished way back in October. This past Tuesday was the sewer lining inspection and today we passed the underground plumbing inspection. We’re finally able to start work on the concrete floor slab.

Underground plumbing

Underground plumbing

To that end we’re in contact with our contractors, but there’s a couple of things we want to finish before the floor goes in. Our plan is to stain and seal the concrete floor rather than put down any kind of flooring. We don’t want to lose a half-inch of head room in the basement to tile, since even with the dig out it’s not all that high, plus it will be radiant-heated, so we don’t want to use carpeting. Because of that, we want to finish some of the work that might make a mess of our nice new floor before we put it in. First, the basement ceiling is currently just exposed floor joists and subfloor, so we’re painting the whole thing with a sprayer. By painting it before we have a floor we don’t have to worry about drop cloths or splatters. We would have done this sooner, but the basement isn’t heated and the weather has been too cold. Fortunately for us, it’s been unseasonable warm recently.

Second, I realized I should do some of the prep on the front window and back door. We’re waiting to put them in until the floor is poured, but I don’t want to be grinding and drilling brick and getting dust all over the floor, so I’ll get as much of the prep done for that as I can. In the case of the door I can’t really install the buck until the slab is in, but I can get the opening smooth and flat and pre-drill the anchor holes. I can put the buck in for the front window and just leave the window out. I’m planning to finish both of these projects by this weekend.

Once they’re done, our next step is to have Mario, our concrete mason, prep the floor with crushed stone, rigid foam, plastic sheeting, and steel mesh. Then Lester, our radiant heating contractor, can put in the PEX tubing loops. Finally, Mario comes back and pours the concrete. We’re hoping that with the underground plumbing behind us we can start making progress again.

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2 Responses to Underground Plumbing Inspection

  1. Mac says:

    A Saniflo macerator would have worked out well in this application, no breaking concrete necessary. A great solution if local plumbing code allows!

  2. Matt says:

    If all we were doing was a basement toilet I’d agree, but we also dug down over a foot to give us extra ceiling height. There’s no way around broken concrete for that.

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