Some rough-in plumbing is done before a slab is poured.

What Is Rough-in Plumbing?

Rough-in plumbing is the process of installing vents, sewage systems, connections, and water supply lines.

A home at the “rough in” stage

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This phase is completed before any walls are enclosed.

When the rough-in phase is complete, the finish plumbing phase can begin.

Rough-in vs. Rough-in work should be inspected before finish plumbing begins.

see to it that you are not positioned over a floor joist before drilling the hole.

Reposition the tub and set it with 2-inch screws.

Measure and mark the position for the toilet.

Use a hole saw to drill out the hole for the toilet drain.

Remember to factor in gravity whenpositioning drain linesso you don’t inadvertently install long horizontal drain runs.

Wipe off any excess glue before it sets.

Extend vent stacks from the basement through each floor of the home to the roof.

Get into the attic to connect the appropriate vents and terminate them outside.

Then reduce the 3/4-inch water line to a 1/2-inch line for each fixture.

Make the length of a 1/2-inch pipe as short and straight as possible.

Take the opportunity to drill holes in the exterior of your home for any hose bibs.

Connect the vent lines to the central vent stack and tie together the drain lines for any half baths.

Ensure the hot and cold water lines run to where the water heater will be installed.

Rough-in plumbing is essentially putting in the entire plumbing infrastructure for the home.

It’s a complex process that takes time and experience to complete without issues.

The best way to complete rough-in plumbing for your new home is to hire a professional plumber.

It isn’t recommended to tackle rough-in plumbing work as a DIY project.