Best Toilets with a Large Trapway (2023) (2023)

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The most common trap size is around two inches and this is usually great for handling the average users waste. However, there are times where a standard size just won't cut it, leaving consumers looking for toilets with a larger trapway.

So to help our readers, we've found several great toilets that fit the bill, with trapways measuring between 2-3/8 to 3 inches. We've also compared their specifications side by side, so you get a good overview of their flushing mechanisms, bowl, tank, and key features.

Our picks

  1. American Standard Champion 4
  2. TOTO Eco Soiree

Best Toilets with a Large Trapway (2023) (1)Best Toilets with a Large Trapway (2023) (2)

(Video) 5 Best Smart Toilets In 2023

American Standard Champion 4 2034.314.020

The 2034.314.020 is an option that we recommend for several reasons. The large, 2-3/8 inch trap, 4 inch flush valve, 1.6 GPF, and siphonic action jets work well together to achieve a strong flush that handle waste very well, with a 1000g MaP score.

It also looks great as do most one piece units, but we think it also has a contemporary theme about it and comes finished in a choice of three different colors: white, bone, and linen.

Could be a solid upgrade for your home, but don't just rely on our opinion, check out what consumers are saying about it. From what we have gathered, the majority of feedback around the web has been people sharing their positive experiences with it.

Compare toilets

Best Toilets with a Large Trapway (2023) (3)Best Toilets with a Large Trapway (2023) (4) Best Toilets with a Large Trapway (2023) (5)Best Toilets with a Large Trapway (2023) (6)
American Standard
Champion 4
TOTO Eco Soiree
Model number 2034.314.020 MS964214CEFG#01
Rough in 12" 12"
Flush type Gravity Tornado
Trip lever .
GPF 1.6 1.28
MaP 1000g 600g

Rim height Height without seat

16-1/2" 16-1/8"
Elongated .

WSA Water surface area

N/A 7-7/8" x 9-13/16"

Water level Rim to surface

N/A 5-7/8"
Dimensions 17.8 x 29.8 x 29.5" 28.1 x 14 x 27.8"
Weight 118 lbs 90 lbs
Trap size 2-3/8" 2-3/16"
Flush valve 4" 3"
Concealed trap
One piece .
Two piece
Floor mount .
Wall mounted
Colors White, Linen, Bone Cotton, Colonial, Beige
Seat .
Soft close .
Rating 86% 85%

Does trap size matter?

If you shop around, you will find that the wide majority of toilets have a trap size of around 2". This is certainly considered good enough for the majority of users. And if you take a look at the size of the testing materials Maximum Performance (MaP) use for rating flush power, they are about 7-8 inches in diameter, so unless your stools are bigger than this, you're probably going overboard in getting a bigger one.

So why do manufacturers market or even produce the 2 to 3 inch options? We believe it's usually a marketing tactic so they can say theirs is bigger than their competitors, but there can be exceptions to this. If that sounds like you, read more about our picks below.

(Video) 10 Best Flushing Toilets Of 2023– Power Flush Toilet Reviews

List of in depth reviews

American Standard Champion 4 2034.314.020

We like the American Standard brand. They usually look great, and have amazing flushing performance to accompany it. And that's where the Champion 4 excels, good handling of waste in bulk, and a cleaner bowl after use that doesn't get clogged up.

But the 2034.314.020 doesn't just rely on performance alone. It has several features that enable it to stand out from many of its competitors on the market. Namely the 2-3/8 inches fully glazed trapway which can handle up to seventy percent more waste than your average toilet. That's a significant number.

It also comes equipped with a 4 inch, piston action, accelerator flush valve. Combined with a siphonic action bowl with jets, and a anti microbial, EverClean glazing, and you have a set of specs that will leave the bowl spotless.

Moving onto the overall design, this is a one piece toilet which has ADA qualities. What we mean by this is that it is tall enough to meet the seventeen to nineteen inches range set by the Americans with Disabilities Act. It is also a elongated style bowl which provides a bit of extra space for your legs, and certainly a more comfortable experience for males compared to round options.

If white isn't the right color for your bathroom, it's also available in linen and bone, which gets coated over a Vitreous China construction. It also includes a slow closing seat.

The main downside we found is that it could be better at conserving water. With so many eco friendly flushing systems out there, this one doesn't compare. It is on the heavy side of water usage, with a 1.6 GPF rate. WaterSense options will save you a considerably larger amount of water over the lifetime of the product.

TOTO Eco Soiree MS964214CEFG#01

TOTO toilets are excellent. It comes as no surprise to us that the MS964214CEFG#01 makes our list with some fantastic features and functionality included to improve the bathroom experience for the average home owner.

(Video) Best Toilets For Every Bathroom 2022 [Updated]

If you're after a highly efficient flush, the 1.28 GPF, tornado mechanism will provide just that, saving you thousands of gallons per year, whilst still rinsing the bowl effectively. In fact, it achieves a 600g MaP rating, which is definitely in the recommended range. It may not have the same performance as the 2034.314.020, but that models trade off for achieving that is using 1.6 gallons of water. So not as efficient.

Measuring 28.1 by 14 by 27.8 inches, plus having an elongated bowl that is right height means this isn't really suitable for compact washrooms. However, for those people with the floor space available, they will no doubt appreciate the added comfort and accessibility it brings.

The trap measures 2-3/16", and it has a 3" flush valve. This allows it to handle larger quantities of waste and the tornado nozzles will wash the bowl more effectively.

It's skirted so that it hides the trapway, and it comes equipped with a soft closing seat.

Other things to consider

Rough in - Your rough in size will usually measure around 12 inches. However, you need to be certain this is the case as some people will require 10" and 14" models. Use this guide to learn more.

Style - Does the overall style and color match the rest of your bathroom theme? Little details like the trip lever or buttons matching the faucets can really take the aesthetics up a notch. You should also look into whether or not you need a two piece or one piece product. Whilst not always the case, one piece units usually look better than their two piece counterparts. Other minor tweaks users can make to give it a more modern, homely feel, is by picking a skirted trapway for those smooth sides.

ADA height? - There are several pros and cons to ADA toilets. One such positive is that users can freely access the washroom regardless of their disability or any mobility problems they may have. They are also better suited to taller people. However, compared to standard height bowls, you increase the chances of constipation because your bowels do not get alligned into as natural a position for passing waste. Standard sizes are also better for shorter people. Picking between them will come down to your individual household environment.

(Video) Top 5 Best Toilets of 2023

Flush power - There is a great way of gauging how powerful a toilets flush is. Step in MaP ratings. This is a company that thoroughly tests products from a wide range of manufacturers and scores them on a 0-1000 gram scale. They get this score by using material designed to replace and act similarly to the average sized human waste, and seeing how the mechanism handles it. It's a reliable resource to get some unbiased information about a specific models capabilities.

Water usage - Readers should check the GPF rate before they buy anything. This stands for gallons per flush and as you would expect, it gives users information about the products water conservation abilities. 1.6 gallons is probably the most common, but there is an increasing demand for 1.28 GPF options as the years go by. This is because they meet EPA guidelines and can help save more than ten thousand gallons per year for the average home. Could be an excellent addition to your washroom if you're passionate about the environment. After all, there is no need to waste water, when there is mechanisms out there that can prevent that.

Glazing - Glazing like CEFIONTECT is a nano scale, ionized protective barrier that goes over the ceramic china to form a smooth protective layer that keep it clean and helps reduce things like bacterial build up and staining on the bowls surface. In effect it means less cleaning chemicals are needed, which are damaging, and a longer lasting product which leaves has all the hygienic properties required of a modern bathroom.

Seat included? - Some manufacturers are known to include all the fixtures in one box. Mansfield are a good example of this with their Pro Fit products, as are Toto intelligent units. However, there are occassions where consumers need to pay attention to the small print as hidden within, it will say the seat or supply isn't included, leaving you with the task of covering this expense.

Brands - If you're familiar with bathroom hardware, you will already know all about the big companies in the industry. However, it's important you look at what the smaller brands are producing. WoodBridge toilets are great and have some first rate flushing mechanisms whilst remaining affordable for the average consumer. In fact, what many of you may find is that many of them specialize in a specific style, and excel at it.

Consumer reports - Try to gauge consumer confidence about their purchase through product ratings and reviews online. The majority of the time, defects are glaringly obvious as many will be complaining. It's probably the first step you should take in your research simply because you can immediately learn whether or not to avoid buying by understanding the overall sentiment towards it.

Who is installing it? - If you have a fairly small budget, and you have no experience in plumbing and D.I.Y, you have to consider any costs associated with hiring a plumbing professional.

(Video) The Best Toilets of 2023


Bigger trapways are sometimes needed to handle heavier waste. We believe the toilets we've selected above will meet 99% of peoples requirements in terms of power and pushing waste out. But that's really only half the battle. You need to be sure you're getting a reputable brand that's comfortable and fits your current plumbing system. We go through as many of these points in the guide above. It is designed to reduce the number of mistakes consumers make whilst shopping.


What toilet has the biggest trapway? ›

The Champion® 4 Flushing System has the largest siphonic trapway (2-3/8" diameter) and the largest flush valve (4" diameter) is virtually clog-free, so you'll never have to plunge again.

What is the best trapway diameter for a toilet? ›

Trapway: The snakelike tubing on the sides of your toilet through which water flows. A larger trapway diameter (2-3/8 inches) reduces the chance of clogging and overflow.

Does trapway size matter for a toilet? ›

Trapway sizes range from the industry-standard 2-inch diameter up to the industry-leading 2-3/8-inch diameter. The larger the toilet trapway, the better the overall flush performance will be.

Which toilets have the most powerful flush? ›

The Kohler pressure-assisted toilet range is one of the best-known ranges of powerful flush toilets. Many models incorporate specially engineered flushing mechanisms and use gravity to provide a more powerful flush using as little as 1.28 gallons of water per flush.

What is the difference between a concealed trapway and a skirted trapway? ›

Concealed or Skirted Trapways

A concealed trapway toilet has a smooth surface at the back that essentially covers the trapway. A skirted toilet, on the other hand, provide a clean, sleek line from front to back, and from the top of the tank to the floor, making it easy to clean.

Are there toilets that don't get clogged? ›

Champion 4 Toilet Meet the Champion 4, the undisputed leader in high performance toilets. With the industry's widest 2 3/8" trapway and 4" flush valve, it created a plunger free world for homeowners and virtually eliminated clogged toilet call backs for plumbers.

What is considered a strong flush toilet? ›

Beginning in the late 1990s, however, manufacturers began introducing what are known as "high-efficiency toilets", or HETs. HETs are defined as having an effective flush volume (see Dual-Flush below) of 1.28 gallons/4.8 litres or less. The HET category includes both single-flush and dual-flush fixtures.

Do all toilets have a glazed trapway? ›

Some toilets are offer a fully glazed trapway and some do not. A fully glazed trapway, while not a requirement for a good functioning toilet, can improve flushing and bowl cleaning performance. The quality of the pottery is often as important as the flushing mechanism.

How do you measure a trapway toilet? ›

Simply measure the distance between the rear wall and the centre of the waste pipe that is exiting through the floor. Back to wall and connector toilets will usually have a measurement range so it can be adjusted to fit different measurements.

What is the best toilet to avoid skid marks? ›

VorMax Flush Technology has been independently tested and proven to clean 2 times better than conventional toilets*. With a flush that cleans that well you can say goodbye to skidmarks, streaks, and splatter for good.

What is better for toilet bowl S trap or P-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.

Are elongated toilets better? ›

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.

Why do commercial toilets flush better? ›

Toilets Are Limited By Underground Plumbing

With a commercial toilet, the water needs to come from a larger diameter water supply line. A residential line simply does not have enough water pressure to flush a commercial toilet.

How do I get more power in my toilet flush? ›

How to Increase Your Toilet's Flush Pressure
  1. The Mechanics of Flushing. ...
  2. Check for Clogs. ...
  3. Increase the Tank's Water Level. ...
  4. Check & Clean Mineral Buildup. ...
  5. Remove Debris & Grime from Flush Holes. ...
  6. Consider a Replacement or Professional Repair.
Jun 16, 2022

Which toilet will flush golf balls? ›

To verify its power and unmatched performance, the Champion Toilet Collection has been tested and proven by American Standard to flush a bucket of golf balls in a single flush, using 20% less water than conventional toilets.

Is a skirted toilet worth it? ›

Not only are they easy to clean, but skirted toilets are also preferred in modern homes because of their simplicity in design. Having the inner workings of a toilet can look cluttered, which is why the apron works wonderfully to hide distracting focal points and blend with the streamlined language of the bathroom.

Why choose a skirted toilet? ›

Choose Between Skirted or Non-Skirted

Most toilet models come with options for a full skirt or an exposed trapway. This decision is really up to you – it's just a personal preference on the look you like best. Skirted toilets tend to be easier to keep clean since there are fewer bends to collect dust and debris.

What are the different trap toilets? ›

There are three common pan types: S-trap, P-trap and skew trap. The trap is the bend in the toilet pipe that gets rid of the waste, and keeps smelly sewer gases from coming up into your bathroom. An S-trap pan has a waste pipe that's connected to the floor.

What is the #1 cause of clogged toilets? ›

Using too much toilet paper

This is probably the most common reason toilets get clogged — and often the easiest to deal with. If we're honest, most of us are probably guilty of this one.

Which brand of toilet is most reliable? ›

The 10 Best Toilet Brands to Consider
  1. Kohler. Established in 1893, Kohler is one of the leading plumbing fixture brands in history. ...
  2. American Standard. American Standard sells reliable toilets, among other plumbing fixtures. ...
  3. TOTO. ...
  4. Duravit. ...
  5. Swiss Madison. ...
  6. Gerber. ...
  7. Cotto. ...
  8. Niagara Conservation.
Jan 24, 2023

What toilet doesn t need a waste pipe? ›

A composting toilet is the original toilet without plumbing. Designed to compost waste in a hygienic and environmentally-friendly fashion, these composting toilet systems are popular in both homes and outbuildings. They are good for the environment and they are also known as "dry toilets”.

Do elongated toilets flush better than round? ›

Elongated bowls may also be slightly easier to use for taller adults and may flush with somewhat more force than round toilets. This might mean they're slightly easier to clean regularly and require fewer “double flushes” to empty the bowl after use.

How many gallons is a good flushing toilet? ›

Recent advancements have allowed toilets to use 1.28 gallons per flush or less while still providing equal or superior performance. This is 20 percent less water than the current federal standard of 1.6 gallons per flush.

Which is better one piece toilet or two piece? ›

One piece toilets are typically heavier and easier to clean, and there's less space for bacteria to grow. Because two piece toilets feature a detachable tank, they're more customizable for preferred styles and heights. Both styles can include bells and whistles like bidet attachments or low-flow energy saving.

What is a fully glazed trapway? ›

Glazed Trapways

A fully-glazed trapway is often a feature that consumers seek out. This type of trapway allows a smoother exit path for water and waste. This smooth passage is a valuable asset in reducing the amount of dreaded clogs that toilets experience.

Are low-flow toilets more likely to clog? ›

The major drawback of low-flow toilets is associated with transporting solids out of your house and into the sewer main. The low water volume in a low-flush toilet fixture can make it difficult to achieve sufficient outflow, which can leading to problems like clogging and unpleasant odors.

What is trap distance for toilet bowl? ›

Secondly, the distance between the center of the outlet hole to the wall for a S trap. An S-trap toilet usually requires a set-out of 140mm. For a P-trap toilet, the measurement is taken from the floor to the centre of the waste pipe. Most P-trap close coupled suites require a set-out measurement of 185mm.

How far away from wall should toilet bowl be? ›

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.

How far from the wall should a toilet rough-in be? ›

So looking at the toilet, make sure there are at least 15 inches of clearance from the center of the toilet to any adjacent fixture (or wall).

Why does my toilet always leave skid marks? ›

If your poop leaves a skid mark in the toilet after flushing because it's sticky, it's likely because you have too much mucus. The two most common mucus forming foods are dairy and wheat gluten. Joyous Solutions: Eliminate dairy and gluten for at least 10 days.

How do I keep my toilet bowl spotless? ›

Pour about a cup of vinegar into the toilet bowl and swish it around with a toilet brush. Let it sit for about five minutes. Add about 1 cup of baking soda to the toilet bowl and follow it by adding another cup of vinegar. Allow about 10 minutes whilst the fizzing action does the cleaning.

How do I stop my toilet from marking skidmarks? ›

Put a coat of car wax, or marine wax (for boat hulls) on the porcelain. Refill the water in the toilet and use as usual. The wax should help the poop slide off more easily. Reapply when it stops working, as the wax will wear off eventually (like after several months).

Why do plumbers use P-traps? ›

The main purpose of a P-trap is to trap noxious sewer gases inside the wastewater system so that they can't rise back up through the drain, and it is the shape of the trap that makes this possible. Running your sink obviously flushes water through the trap and down into the drain line.

What is the advantage of S-trap over P-trap? ›

S-Trap VS P-Trap Kitchen Sink:

An S-trap is most commonly found in bathrooms, as it features a more gentle slope than that of its counterpart, the P-trap. An S-trap aims to prevent sewer gasses from entering into your home and causing odors. S-traps and P-traps are both used for sewage drainage.

Should you put a trap under a toilet? ›

All plumbing fixtures need to have a trap. Inside a p-trap is 2-4 inches of standing water. This standing water is called the trap seal. The trap seal is what blocks sewer gas from invading into your home.

What height toilet is best for seniors? ›

While a standard toilet typically measures 15 or 16 inches from the floor to the top of the seat, comfort toilet heights are 17 to 19 inches. The Americans with Disabilities Act (ADA) specifies that the height of a disabled toilet must be within this range.

What toilet height is best? ›

Toilet Height

Standard-height rims are 14- to 15-inches from the floor and should work well for shorter people. If you're taller, consider chair height toilets that have a toilet seat height of 17-inches or more.

Which toilet style is better? ›

Squatting squeezes your stomach, which aids digestion by pressing, pressurizing and churning the food in your stomach. Sitting in western-style toilet does not put any pressure on our stomach and sometimes doesn't even lead to good and satisfactory clearance of stool.

Can you use a commercial toilet in a residential home? ›

The answer is an emphatic “no!” Trying to run a commercial toilet on residential plumbing will only lead to ruptured pipes and could lead to damage to your home. Your residential plumbing is not built for the pressure required by commercial toilets.

Are old toilets better than new ones? ›

While your old toilets may technically do their job, they're simply not as efficient as newer models. Not to mention if your old toilets start to show their age by cracking, leaking, or clogging, it's often best to consider toilet replacement rather than repair.

Which toilet has the most powerful flush? ›

The Kohler pressure-assisted toilet range is one of the best-known ranges of powerful flush toilets. Many models incorporate specially engineered flushing mechanisms and use gravity to provide a more powerful flush using as little as 1.28 gallons of water per flush.

Why is the water low in my toilet bowl after flushing? ›

Low Water in Toilet Bowl

The toilet tank fill tube may be damaged or incorrectly positioned, preventing the water level from reaching its proper level. Position the fill tube so water is flowing into the overflow tube (the open pipe near the center of the tank). If this doesn't fix the problem, replace the fill tube.

Why does my toilet take 20 minutes to fill? ›

If your toilet is slow to fill, it might be due to one of four reasons: a clogged vent, a clogged drain, faulty plumbing, or a blocked pipe. 1. A clogged vent. If your vent is clogged, the air won't be able to escape from the tank, and the water will take longer to fill up.

Which toilets are least likely to clog? ›

5 Best Non-Clogging Toilets
  • Best Durable : Woodbridge One-Piece Toilet.
  • Best Anti-Clogging : Kohler's Non-Clogging Toilet.
  • Best For Space Saving : American Standard Non-Clogging Toilet.
  • Best With High-Quality Porcelain : Horow Store's Toilet.
  • Best Water Saver : DeerValley Toilet Bowl.
Feb 16, 2023

What are 2 things you should never flush down a toilet? ›

10 Things You Should Never Flush Down Your Toilet
  • Wet Wipes, Baby Wipes, or Any “Flushable” Wipe. ...
  • Paper Towels and Tissues. ...
  • Dental Floss, String, Hair, and Thread. ...
  • Q-Tips, Cotton Balls/Pads, and Feminine Hygiene Products. ...
  • Contact Lenses. ...
  • Medication. ...
  • Cooking Oil, Grease, or Fats. ...
  • Bandages.
Feb 19, 2021

Do some toilets have more flushing power? ›

FACT: WaterSense labeled toilets get the job done. Many tend to associate lower flow with lower flushing power. Not true. New technology and design advancements, such as pressure-assisted flushers and modifications to bowl contours allow high-efficiency toilets to flush better than first-generation low-flow toilets.

Which toilet trap is best? ›

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.

What is the difference between as trap and P-trap toilet? ›

An S-trap is an S-shaped trap between the toilet outlet and the sewer system. It is connected to the drainpipe through the floor. On the other hand, a P-trap is shaped like the letter P and is connected to the drainage system through an opening in the wall.

What is the max toilet trap arm length? ›

The length of Water closet (toilet) trap arms is measured from the floor flange to the inner edge of it's vent. Developed length shall not exceed 6'.

What is a comfort height toilet? ›

How High is a Comfort Height Toilet? Comfort height toilets vary in height. By and large, the seat tends to stand between 17 and 19 inches from the ground (43cm to 48cm). In contrast, a standard traditional height toilet stands at around 15 inches (38cm).

How far should toilets trap be from wall? ›

Any sidewall or nearby fixture must be at least 15" away from the toilet's flange. However, 15" is the absolute minimum. A 15-inch distance from the vanity, shower, tub and back and side walls are required to accommodate the toilet flange.

What toilet is best for not clogging? ›

5 Best Non-Clogging Toilets
  • Best Durable : Woodbridge One-Piece Toilet.
  • Best Anti-Clogging : Kohler's Non-Clogging Toilet.
  • Best For Space Saving : American Standard Non-Clogging Toilet.
  • Best With High-Quality Porcelain : Horow Store's Toilet.
  • Best Water Saver : DeerValley Toilet Bowl.
Feb 16, 2023

What is the standard size S-trap toilet? ›

For an S-Trap, the setout is the measurement from the finished wall to the centre of the waste pipe in the floor (modern standards are between 140mm and 165mm). For a P-Trap, the setout is the measurement from the finished floor to the centre of the waste outlet in the wall (the standard is 185mm).

What is the cleanest toilet in a public bathroom? ›

It's often been theorised that the bathroom stall that is closest to the door is used the least of all the stalls, meaning it remains the cleanest. The theory goes that men naturally head for the furthest stall in an attempt to maintain anonymity and find privacy.


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