Plumbing Under Slab Floor

Because the plumber has no access for installing pipes below the concrete preliminary plumbing takes place before the foundation contractor pours the slab.

Plumbing under slab floor.

And that s the method of venting we re using to plumb this bathroom. Have your plumber ready to come right away after the fill is spread and compacted under the slab. Let s start with sizing individual plumbing vents. During the plumbing slab construction the pipes are buried in gravel or sand beneath the slab and are obviously difficult to access.

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. It can also run under sidewalks stoops patios and decks.

That s when each plumbing fixture has its own vent which is called an individual vent. Below are a some under slab plumbing diagrams that are relatively common. 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. Main sewer line the main sewer line runs beneath the future slab on a gravity flow system.

Under slab plumbing diagrams. The minimum toilet vent size depends on your plumbing code. He will dig trenches as needed to run the sewer pipes and. Don t ignore this because water leakage under a concrete foundation can cause additional problems.