QA

Quick Answer: How To Install A Bathtub Drain And Trap

Does a bathtub drain need a trap?

Yes, shower and tub drains require a trap in the plumbing to prevent harmful sewer gases from coming into the home.7 days ago.

What kind of trap do you use for a bathtub?

The proper size for both a bathtub drain and trap is 1 1/2 inches in diameter, regardless of the bathtub size. The type of trap used on a tub drain is a p-trap. Because they are the same size, the trap will glue directly onto the PVC drain pipe without the use of adaptors or fittings.

How far can p-trap be from tub drain?

Maximum Distance According to the International Residential Code, the maximum vertical distance between the sink drain and the entrance to the p-trap is 24 inches.

Where is the trap on a bathtub drain?

A bathtub trap begins at the end of the tub drain assembly, where it is glued onto a fitting screwed to the drain outlet. The other end is glued to a length of horizontal pipe. It ties into the waste stack that empties into the sewer.

Why is s trap illegal?

The “S” trap is prohibited under the Uniform Plumbing Code throughout the United States. This is because the “S” trap will siphon or suck water out from the trap which will end up releasing methane (sewer) gases into the home.

How do you drain a bathtub?

Tips on How to Unclog a Bathtub Remove easy-to-reach gunk. Start by removing the stopper. Pour boiling water down the drain. Boil a large pot of water and pour it slowly down the tub drain. Use a plunger. With the stopper removed, you can clear the drain with a plunger. Use a plumber’s snake.

What size pipe is used for bathtub drain?

Down the Drain According to Bonnets Stems and Accessories, Inc., a standard modern bathtub drain is 1 1/2 inches in diameter – the width straight across the middle. Rough-in plumbing should be calculated for a 1 1/2-inch pipe.

What size pipe is used for tub drain?

The actual drain pipe that’s in the slab the plumber will connect to is probably 1 1/2-inch diameter. That’s a common pipe size for tubs. Large stand-up shower stalls tend to have 2-inch pipes draining them.

Do bathtubs need a vent?

Bathroom tubs and showers need to be vented to dislodge the water from the accrued space properly.

Does a shower trap need to be directly under the drain?

If you install TWO “P” traps the shower will NOT drain. The “P” trap SHOULD be directly under the drain, but no more than a few inches off center of it, if conditions require it. NO trap, TWO traps, and/or a 9 foot offset are NOT allowed and if he suggests any of them get a different installer who is a REAL plumber.

What’s the difference between P-trap and S trap?

The “trap” is the bend in the pipe where the waste goes out of the toilet. A P-trap (think P is for Plaster) exits at the back of the toilet and is designed to outlet through a wall. An S-trap (think S is for Sewerage) exits at the bottom of the toilet and is designed to outlet directly through the floor.

Can a shower and bath share the same drain?

Yes, they will both be using the same drain pipe at somepoint inside or outside of your house. But the the pipes must join well below the level of both items or the pipe must be large enough for the combined flow, otherwise when you put water down one of them, it will flow out of the other!.

Does an S-trap need a vent?

It allows sewer gases to escape to the outside through a vent pipe, which extends above the roof. Without a vent, an S-trap can allow the water in the fixture to drain so quickly that it often siphons the trap dry and exposes the room to sewer gases.

What are U bends for?

Newcomers to bathroom plumbing sometimes ask, ‘why do I need a U bend? ‘ The simple answer is that the water trapped in the U bend acts as a barrier to the foul smells that otherwise rise from the sewer or other drainage pipework. This is why it is an absolute requirement in the building regulations.

What is an S bend?

An S-shaped trap is also known as an S-bend. It is also referred to as a sink trap because it is installed under most sinks. Because of its shape, the trap retains some water after the fixture’s use. This water creates an air seal that prevents sewer gas from passing from the drain pipes back into the building.

Do plumbers install bathtubs?

Yes, among other services, plumbers do install and replace bathtubs. In addition to removing and installing your new bathtub, they will also connect the plumbing associated with the bathtub as well.

Should a gully trap have water in it?

When the flow of water into the gully stops, a small amount will remain at the bottom between the outlet and the central chamber. This “trapped” water serves to prevent any smells and gases from escaping back out of the drain and into the air.

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

6 Answers. 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.

Why does my P-trap smell?

A P-trap is the curved portion of pipe under the sink. It’s supposed to create a seal by holding water, which prevents sewer gases from getting into the bathroom. If the P-trap isn’t working properly, sewer gasses can make their way into the bathroom and cause your sink to stink.