Plumbing Under Concrete Basement Floor

There is no crawlspace or basement beneath which means the plumbing is under the slab foundation.

Plumbing under concrete basement floor.

Plumbing design installation for homes with basements. Houses built on a slab lack crawlspaces and there is no space under the floor. At this point you will no longer see the horizontal drainpipes and the main sewer line but you will see the stubs that extend vertically out of the sand. It can also run under.

Considerations cutting through a concrete floor should be a last resort. Rising groundwater causes hydrostatic pressure and that causes soil to push on your basement walls and floor. From there the pipe runs under the floor and out to the city sewage system under the street. Before the concrete trucks come the contractor fills in the area over the network of plumbing pipes and drain lines with compacted sand.

The concrete slab is often placed on a layer of sand for drainage or to act as a cushion. A concrete slab foundation is constructed by pouring concrete a mixture of gravel or broken stone sand cement and water within a mold to cure. How to run plumbing under concrete. Once the concrete is out you can dig in the remaining trench to remove the sand or soil before running the new plumbing.

So before you can do any real planning you have to find that line. Homes with this a concrete slab foundation rest atop this rock solid block. Diameter vertical pipe that runs into the basement floor. First locate the main stack the large 3 or 4 in.

But it may run at an angle rather than straight out to the street.