What is the “standard” height of a P trap?

Your washing machine P-trap must be 6–18 inches above floor level. This distance is measured from the floor to the centerline of the trap arm. The trap arm is the straight pipe that runs from the U-bend of the P-trap to the drain pipe. This P-trap height conforms to the standard building code.

Can a P-trap be higher than the drain pipe?

You attach the p-trap directly to the drainage and manuever the p-traps exits into you existing drain. It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally.

How tall is a 2 inch P-trap?

CHARLOTTE PIPE 2 DWV P-Trap with Solvent Weld Joint DWV (Drain, Waste and Vent) (1 Unit Piece)

How far below drain should P-trap be?

Maximum Distance



However, the Universal Plumbing Code stipulates that the total developed length of all tailpieces, arms and fittings connecting the drain to the p-trap must be 24 inches or less.

Are P-traps a standard size?

Choosing the Right P-Trap



Kitchen sink P-Traps come in 1-1/2” standard size, while bathroom sinks use P-Traps of 1-1/4” standard size. The traps also come in different material types such as propylene, ABS, brass (chrome-plated or natural), and PVC.

Do showers need P-traps?

P-traps, the curving section of pipe you can see under the sinks in your house, perform a vital function for any plumbing fixture in a building. Shower and bathtub drain pipes must incorporate a P-trap; otherwise the health and safety of anyone in the building will be jeopardized by sewer gases entering the building.

Can a sink trap be under the floor?

All traps must be installed on the same floor as the fixture served with the exception of tubs and showers. If you create a waste pipe for any fixture that needs draining, including a washing machine, and the drain doesn’t have a properly installed P-trap, you’re creating a dangerous situation.

What is the standard height for a washer drain?

In order for the drain hose on your Top Load washer to function properly, the drain must be at least 30″ up from the floor and less than 8 feet high. In order for the drain hose on your Front Load washer to function properly, the drain must be at least 24″ up from the floor and less than 8 feet high.

Does a washing machine drain need a P trap?

If they omit the trap and vent, it’s a mistake that can cause problems on two counts. The lack of a P-trap exposes the area to sewer fumes and the lack of venting will cause the drain to run sluggishly and overflow. Washers, like all fixtures, need a trap.

What is the standard height for a sink drain?

The standard kitchen sink is 8 inches deep, which means that the normal distance between a kitchen sink drain and the floor is 28 inches. This will vary, depending on the height of the counter and the depth of the sink bowl. In the bathroom, the sink drain is typically between 24 inches above the floor.

How is P-trap measured?

If you have 2.5 inches from the bottom of the tailpiece to shelf and 0.5 inches from the drain to shelf you can use CP-trap. First you have to cut 2.5-2.0 inches from the end of the tailpiece. The height of the p-trap is 4.5 inches 5-2.5=2.5 inches or 4.5-2.5=2.0 inches.

What is the best material for a P-trap?

The most common is plastic, which is made of either PVC or ABS. They are easy to install and maintenance is easy to perform. The plastic P-Traps are the least expensive of the two but is not as attractive as the metal traps. take apart to clean or service.

How do you attach a P-trap to a drain pipe?

Quote from the video:
Quote from Youtube video: To do this first attach the fitting with slip washers and nuts. Then apply pipe lubricant on the slip washer to ensure a tighter. Fit. Now it's time to attach the trap arm to the drain stub.

Which way does P trap go?

In a Shower P-Trap, Can the Lower Curvature Be Backward? When you cement it together, the straighter side of the trap- which is not as curved- should be what the 90 degree piece is glued onto. Then the curved end should be connected to the shower drain. However, gluing the P-trap shouldn’t affect the drainage.

Why does P trap leak?

The compression nuts holding a sink trap to the tailpiece and waste arm are designed to be hand tightened, and when you do it properly, the trap is watertight. When a P-trap leak occurs, it’s usually because the nuts aren’t tight enough, the pipes are misaligned or a P-trap washer isn’t seated correctly.

Do all drains need a trap?

There are traps in every drain because any connection that leads to the drain system is also a possible outlet for sewer gas. Even your toilet has an internal trap shape to its porcelain configuration that serves exactly the same function.

Which is better P trap or S trap?

P-traps are generally considered by most to be more effective and consistent in maintaining water trap compared to S-traps. Their design makes them less vulnerable to drying out and losing seal: a properly installed P-trap will never lose its water seal.

Can a shower and sink share a drain?

1:Can multiple bathroom sinks, baths, showers ect share a common drain pipe ? Yes they can and do all the time.

Does toilet need P trap?

But never install a p-trap for a toilet!



Because toilet’s have internal traps. Double trapping a plumbing fixture in series is a code violation. The second trap causes unnecessary obstructions in the flow of drainage.

Can a shower and toilet share a vent?

Wet vents are typically used when plumbing a bathroom group. So yes the shower can also be vented by the wet vent along with the toilet. There is one major stipulation when wet venting multiple fixtures when a toilet is one of them: the toilet must be the last fixture connected to the wet vent.

Can you vent a toilet with a 2-inch pipe?

Toilet Vent Pipe Size? It’s typically recommended that you go with a 2″ PVC pipe for the vent. This is according to the uniform plumbing code (UPC). It may not be enough, depending on how many fixtures you are trying to run off the vent.