What is a back drain toilet

What is a back outlet toilet? Back outlet toilets connect to a plumbing “rough-in” positioned on a bathroom wall rather than on the floor. They use a toilet connection located at the back of the bowl rather than the more common placement of directly below the bowl.

What is toilet Trapway?

A toilet trap, or trapway, is a curving channel inside the base of a toilet that leads from the hole at the bottom of the bowl to the drainpipe. … You can determine whether a clog is in the toilet’s trap or further down in the drain by checking the sink and/or tub drains.

How do you rough in a rear outlet toilet?

Rear-outlet toilets are configured a bit differently. Rather than waste exiting through the floor, it exits through the bathroom wall. The rough-in measurement for a rear-outlet toilet is the distance from the finished floor to the center of the waste outlet.

What is the drain in a toilet called?

Toilet Trap Although it is not immediately evident, every toilet has built into it a curved drain trap of its own, which you may be able to see if you view the toilet bowl unit from the side. This built-in trap serves the same function as a sink drain trap: to trap water and keep sewer gases from rising into the home.

What is a washdown toilet?

Wash Down: In a wash down action toilet, the water from the tank pours into the bowl and washes the material down the outlet. It is a “pushing” action only, and does not evacuate the bowl. Waste is simply “pushed” by free flowing water out of the trapway (usually 4” in diameter).

Do toilet drains have traps?

Toilets have their own built-in traps, and so do floor drains. … If you don’t have anything draining to your floor drain on a regular basis, the water in the trap may evaporate. One fix is to pour some RV antifreeze into the drain.

Where is toilet drain?

The standard placement for a toilet drain in the bathroom is 12 inches from the wall behind the toilet. The 12-inch measurement runs from the wall itself to the dead center of the drain.

What is the hole at the bottom of a toilet called?

In most toilets, the bowl has been molded so that the water enters the rim, and some of it drains out through holes in the rim. A good portion of the water flows down to a larger hole at the bottom of the bowl. This hole is known as the siphon jet.

What are the parts in the back of a toilet?

There are really only two main toilet tank parts: The toilet flush valve, which lets water gush into the bowl during the flush, and the fill valve, which lets water refill the tank after the flush. … Look at the overflow tube to determine which toilet valve is causing the trouble.

Can a toilet and sink share the same drain?

In the US, with modern regulations, in most municipalities, yes, they do. The water and solids from your toilet waste line and the water from your drains end up in the same sewer line, if you have access to a municipal sewer system.

Article first time published on

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.

How do I know if my toilet is a 10 or 12 rough?

If the old toilet is still there, measure from the center of the capped bolts (on the bottom) to the wall (not the baseboard). There should be 24 inches of clearance from the wall facing the bowl and 15 inches on each side as a guideline. If your measurements are between 11.5 and 12.5 inches, it is a 12-inch rough-in.

What is the difference between a 12 and 14 rough in toilet?

The main difference between 12-inch rough-ins and 14-inch rough-ins is in their size (proportions). Depending on the type of bathroom, 12-inch rough-ins are generally more used than 14-inch rough-ins, but they both have merits, which means that you sometimes need to reduce the space from behind the tank.

What is the best flushing toilet on the market UK?

Celino All-in-One Combined Bidet Toilet with Soft Close Seat. …
Modern White Toilet with Cistern & Soft Close Seat. …
Affine Modern Square Toilet. …
Affine Modern Bathroom D-Shape Pan. …
Affine 2 in 1 Toilet Basin Combo. …
The Bath Co. …
Breeze Bathroom Rimless Toilet.

Do all toilets have a siphon jet?

The siphon jet is a molded pocket in the front of the toilet that holds extra water until a flush is initiated. It points directly into the trapway. … It is a feature found on many, but not all toilets, so check the features if you’re buying a new toilet for your bathroom.

How do you completely drain a toilet?

Turn Off the Water and Flush. The first step to draining a toilet is to turn off the water supply and flush. …
Plunge out the Water. Plunging helps to remove the water from the toilet bowl whether the drain is clogged or not. …
Siphon out the Water. …
Bail out the Water. …
Sponge out the Water. …
Vacuum out the Water.

Why does my bathroom smell like sewage?

Broken, Clogged or Poorly Installed Vent Pipes When it gets clogged, the sewer gases can back up into the sinks and the toilet, resulting in your bathroom’s sewage smells. You may experience a bubbling sound coming from the toilet or the drain as sewer gas forces its way into the bathroom.

Where is the P-trap in a toilet?

P-traps are U-shaped pipes in toilets and underneath sinks. P-traps hold a small amount of water that prevents sewer gases from rising up into your home. These pieces of plumbing also serve several other important purposes.

How long does it take for a toilet trap to dry out?

P-traps can dry out as quickly as a month, sometimes even less than that. This happens most often in winter. To prevent your P-trap from drying out, run the sink or shower for a minute or two once a week to keep water flowing and your P-traps from drying out.

What is the valve behind the toilet called?

Stop Valve: This is also called the toilet supply valve because it controls the fresh water supply going into the tank. It is usually located behind the toilet near the floor, and turning it off is another way to stop an overflowing toilet because the tank cannot fill once it is turned off.

What does the toilet overflow tube do?

An overflow tube is a vertical tube inside the tank of a toilet. It’s purpose is to move water into the bowl in the case where the ballcock malfunctions to prevents water in the tank from overflowing.

Where is the jet hole in a toilet?

The siphon jets are small openings under the rim of the bowl. If these jets become clogged, your toilet will not flush properly. Flush the toilet and watch how the water flows, it should swirl. If it comes straight down, the holes need cleaning.

Why do Dutch toilets have a shelf?

The purpose of the shelf is inspection. You’re meant to look at the consistency, shape, color, abnormalities, etc. before flushing, and then hope that the rush of water cleans the shelf enough – otherwise, that’s what the brush is for.

When I flush my toilet water comes up in my shower?

If you see used water from the toilet backing up into shower or tub drains though, that’s a sign of a clogged sewer main. Since something is blocking the wastewater, it has no other choice but to back up. Since your toilet is set higher, the water is more likely to rise out of the lower tub or shower drain.

Does toilet water and shower water go down the same drain?

The shower and toilet are connected to the sanitary sewer system. The wastewater from both can be treated at the same facility.

Can a toilet go where a shower was?

Can you put a toilet where a shower was? The simple answer is yes, you can put a toilet where a shower was, but the move doesn’t come without its issues. This isn’t a simple DIY job. You are going to have to remove at least one wall and, hopefully, only a small portion of the floor.

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.

Can a toilet touch the wall?

Toilets should have a minimum of 15 inches from walls that flank the fixture. A distance of 12 to 12.5 inches should be between the center of the toilet flange and the back wall.

What is the distance between toilet and wall?

Most codes require at least 15 inches (measured from the center of the toilet) from any side wall or obstruction and not closer than 30 inches center to center to any other sanitary fixture. (The NKBA actually recommends 32 inches.) There should be at least 24 inches of clear space in front of a toilet or bidet.

What is the tallest toilet you can get?

Highline™ Tall Two-piece elongated 1.28 gpf tall height toilet. The Highline® Tall is Kohler’s tallest toilet – a full 2″ taller than Comfort Height® toilets to provide ultimate accessibility and ease of use.

How do I choose the right size toilet?

Make sure the toilet dimensions will fit your space. Start by measuring the rough-in size. This is the distance between the wall behind the toilet and the center of the drainpipe or the bolts that hold the toilet to the floor. It’s best to perform this measurement before you remove the old toilet.