Plumbing Under Slab Floor

And that s the method of venting we re using to plumb this bathroom.

Plumbing under slab floor. That s when each plumbing fixture has its own vent which is called an individual vent. Main sewer line the main sewer line runs beneath the future slab on a gravity flow system. Under slab plumbing diagrams. Concrete slab foundations that encase the home s plumbing lines also called under slab plumbing could have pipes made of copper cast iron or galvanized steel and these materials are prone to decay over time.

Plumbing is one of the rough in elements of construction and is generally hidden by the finished elements such as walls floors and roofs. It can also run under sidewalks stoops patios and decks. Let s start with sizing individual plumbing vents. Today im going to share with you how i replace old cast iron drain pipes under a concrete slab in a 1958 home.

See our pages checking over the concrete slab drain pipes and plumbing in the walls for other items to review and check. In the ipc toilet vents are 1 5 in the upc it s 2 inches. This page covers checking the sewer and water pipes in a slab. He will dig trenches as needed to run the sewer pipes and.

During the plumbing slab construction the pipes are buried in gravel or sand beneath the slab and are obviously difficult to access. Don t ignore this because water leakage under a concrete foundation can cause additional problems. Because the plumber has no access for installing pipes below the concrete preliminary plumbing takes place before the foundation contractor pours the slab. These plumbing sewer pipes should be checked anytime there had been significant foundation movement or foundation repair.