Recent content by cccrowe

The only thing that ties into the main stack, above the concrete slab, is the toilet. This is a one bathroom house. The kitchen sink has it's own independent vent. The bathroom sink and tub are also vented separately.

I could reduce the stack from in the concrete floor, I have broken the concrete over the pipes in the first floor, just to verify that they have not broken (1927 house in earthquake country).

The vent stack comes out of the floor underneath a beam that runs the length of the house. There are rarely basements in San Francisco. The first floor is unfinished space/garage, so the stack is not in a wall. The stack rises ~ 7 feet out of the floor, has a 1/4 bend, goes two feet, then a...

Sorry, I should have mentioned that the stack only carries the toilet. However, I found in the plumbing code that the main vent needs to run "undiminished in size" from the building drain to the open air... no it's not getting inspected, but if I want to build out my basement at a later date...

I am currently remodeling a bathroom on the second floor of my house in San Francisco, CA. The previous bathroom had both a shower and bathtub. When I removed the shower, I found that the main vent stack was only partially in the wall (it is a 4 inch stack, and the wall is ony 3 1/2 inches...