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How To Install Toilet Drain

How deep should a toilet drain be?

On average, trenches should be around 12-24 inches-deep, and wide enough to house your pipe comfortably before filling it in with soil and sod. As we’ve mentioned, in cold weather regions, this will need to be deeper or you’ll have problems with your sewage freezing.

What type of pipe is used for toilet drain?

PVC Pipes PVC is a plumbing pipe known for its versatility, lightweight, and blockage resistance. PVC piping is generally used as part of a sink, toilet, or shower drain line, though it’s sometimes used as a home’s main water supply pipe.

Can a toilet and shower share the same drain?

A toilet and shower can share the same drain but they cannot share a waste trap arm for sanitary reasons. Both shower and toilet wastewater go to water treatment facilities, but shower water used to drain outdoors. Below, we will get into why these drains are typically separate.

Can you replace a 10 inch rough-in toilet with a 12 inch rough-in toilet?

The rough-in for your bathroom plumbing should match the rough-in for the toilet. Even if a toilet is designed for a 10-inch rough-in, you can still install it in a space with a 12-inch rough-in.

Can you install a toilet without a vent pipe?

Toilet without a vent through a roof stack All of the vents located in your house connect to it with the use of several different branch lines. However, sometimes, the design of the house does not allow this. In this situation, you can redirect your main stack through a wall if your local building codes allow it.

What does 12 rough-in mean for toilet?

The toilet rough-in refers to the distance from the finished wall to the center of the toilet’s floor drain or waste outlet. Most toilets have a rough-in of 12 inches, although it’s not uncommon for older homes to have an unusual size such as 10″ or 14″. Rear-outlet toilets are configured a bit differently.

Can a toilet drain drop straight down?

When the toilet drain reaches a vertical wall, it drops straight down between wall studs. Although this is a vertical drop, don’t use standard 90-degree plumbing elbows, called “hard 90s,” to connect the pipes. The sharp corners on these elbow fittings can increase the risk of clogs.

How many inches from the wall should a toilet drain be?

The rough-in measurement varies according to the style of the toilet. The distance of the toilet drain from the wall for wall hung toilets can be between 10 to 14 inches roughly.

Does toilet flange go inside pipe?

Buy an inside closet flange. This toilet flange is designed to glue on the inside of the pipe or expand inside the pipe. If the plastic pipe has a 3-inch inside diameter, you’ll have to remove the old flange from the outside of the pipe.

Are all toilet drains the same size?

Not every toilet requires the same size hole, and clearances also vary, but there is a standard size and placement that works for most models.

What is the toilet trap arm?

The toilet’s trap arm, also referred to as the fixture drain, is the pipe between the trap and the vent. That means your fixture drain can have an unlimited distance (909.1). Keep in mind your toilet still needs a vent, but your trap arm can be as long as necessary.

What is the difference between a sanitary tee and a regular tee?

A sanitary tee is a plumbing fixture that allows liquids to drain while also allowing the plumbing system to vent. The fitting resembles a normal tee fitting; the sanitary tee, however, when viewed from the side will have a definite downward sweep to the center inlet.

Does sink waste go into sewer?

Older properties may use separate soil and waste pipes to exit into the sewer. Both soil and waste pipes will run from your toilet, sinks, shower, washing machine, urinal, bidet and any appliance that voids water and join the soil stack. The stack will run directly into your underground drain.

Why would I want an elongated toilet bowl?

Elongated bowls are also considered more ‘hygienic’ in that the larger surface area of the bowl makes is easier for men and children to use with less mess. The longer bowl size is also a requirement for ADA use, and the longer/wider bowl is generally easier to use for those with mobility issues.

How do I make sure my new toilet will fit?

If the base of the new toilet is shorter than the distance between the rear bolt holes and the wall, it should fit. In small bathrooms where space is tight, also measure from the sides of the flange bolts to the sidewalls or other objects to assure side-to-side clearance.

What is an offset flange?

Unlike a standard flange, which is centered on the waste pipe, an offset flange is off-center—that lets you shift the location of the toilet by a couple of inches (left, right, forward or back). P.S. Flanges with stainless steel rings cost a few bucks more than all-plastic versions.

What happens if a toilet is not vented?

Poorly-vented drain lines will not be able to effectively move wastewater and solid waste out of your building. This could lead to problems such as overflowing drains, backed-up toilets, and similar plumbing issues.

How do you vent a toilet without outside access?

The easiest way to vent a bathroom with no outside access is to install a ceiling vent, but you have other options to consider, too. You can also add more ductwork, get a floor vent, or just use a fan to add extra airflow during your projects.

Is there a ventless toilet?

What is a ventless toilet and how does it work? Ventless toilets are just like regular ones, except there is no vent for the toilet to release the water vapor. Instead, they use a siphon action that pulls the water out of the toilet bowl into an underground waste pipe.