Can you connect shower drain to sink drain?

1. Yes, you can vent the sink drain into the shower drain. 2. Usually, they can share the same vent if the vent is within 5 feet of both fixtures.

How do you connect a drain pipe to a PVC pipe?

Connect 2-inch PVC pipes to both the upper and the lower opening in the T-fitting. The upper pipe runs up through the stud wall, until reaches the attic, where you will connect it to the home’s main vent stack. The lower opening connects to a PVC drainpipe that runs down to the drain line.

How big should a PVC drain line be?

All the fixtures in your house will connect to a main drain line, which is usually 4″ in diameter. If you need to know the thickness, outside diameter or inside diameter of a PVC pipe, check out this calculator. Next, measure the length of the pipe you are working with. This will allow the total pipe drop (or fall) to be calculated.

Can you connect a trap to a vertical drain?

Connecting a trap to a vertical drain with a wye fitting and a 45-degree elbow seems like a good idea. But it’s not. As water drains down the steep slope at the wye, it can create a siphon effect such that water will be sucked out of the trap. And the empty trap will allow sewer gas to flow into your home.

Where does the drain line and the vent line go?

If the toilet drain does not connect directly to a vent, you must find another way to vent it. If the drain line runs away from the wall where you want the vent, use a reducing Y and a 45-degree street elbow to point the vent line toward the wall. The horizontal vent pipe runs right next to the closet bend.

Where does the drain line start in a bathroom?

Typically, an entire bathroom group vents in the wall behind the sink, where a 1 1/2- to 2-inch vent pipe connects to a sanitary T-fitting. The vent pipe runs upward to meet the house’s main vent-and-soil stack in the attic. The sink’s drainpipe runs downward to connect in the floor to the main drainpipe, which originates with the commode.

Connect 2-inch PVC pipes to both the upper and the lower opening in the T-fitting. The upper pipe runs up through the stud wall, until reaches the attic, where you will connect it to the home’s main vent stack. The lower opening connects to a PVC drainpipe that runs down to the drain line.

Connecting a trap to a vertical drain with a wye fitting and a 45-degree elbow seems like a good idea. But it’s not. As water drains down the steep slope at the wye, it can create a siphon effect such that water will be sucked out of the trap. And the empty trap will allow sewer gas to flow into your home.

What do I need to install drain line through floor?

Although a commode has a built-in trap and a sink trap is in the vanity, you’ll need to install an in-floor trap for a tub or shower. Necessary tools include a measuring tape, a chop saw to cut PVC pipes and a cordless drill with a hole bit if you have to cut through a joist.