The Ultimate Guide to Choosing the Best Flushing Toilet

Last Updated on June 19, 2024 by John Coleman

What Makes a Toilet Have a Strong Flush?

There are several factors that contribute to a toilet having a strong flush. These include the design of the toilet, the size and shape of the bowl, and the amount of water used in each flush.

Design of the Toilet

Size and Shape of the Bowl

As mentioned before, the size and shape of the bowl also play a role in a toilet’s flushing power. A larger bowl allows for more water to enter and exit, resulting in a stronger flush. The shape of the bowl can also impact the direction and force of the water flow, contributing to a more powerful flush.

Amount of Water Used

The amount of water used in each flush is regulated by law in most countries. However, there are still some variations among different toilets. Generally, a toilet with a larger tank and higher water capacity will have a stronger flush. This is because more water is able to enter the bowl and create a forceful push to remove waste.

Characteristics to Consider

Force of Flush

One of the driving forces in the strength of a flush is the number of gallons per flush (GPF) used with each flush. The federal standard GPF is 1.6. However, with the advent of new technology, some toilets on the market are just as efficient but use 1.28 GPF or less which is 20% less than the federal standard.

Water Conservation and Efficiency

It is best to choose options with a low GPF rating for conservation. In addition to a low GPF rating, the dual-flush option is a great choice. A dual-flush toilet allows users to deploy a full flush for solid waste or a partial flush for liquid waste. This allows you to conserve water while saving you money.

Types of Flush Mechanisms and Rim Designs for the Best Flushing Toilet

There are different general types of flush mechanisms and rim designs available on modern toilets. Below, are a few of the most common types:

  • Double Cyclone or Double Vortex Flush System – this efficient flush technology enhances waste removal while reducing water usage. Traditional flush systems produce only one single swirl in the toilet bowl and are not as effective in waste removal. The double vortex flush system creates two separate water jets that move in a swirling motion which enhances the efficiency of each flush. This is an option if water conservation is a priority for you.
  • Tornado Flush System – this system revolves around two nozzles that propel water in a swirling and forceful cyclonic motion to enhance thorough bowl cleaning. This system is ideal for its quiet sound, water conservation, prevention of clogs, and improved hygiene.
  • Siphon Flush System – This system creates a siphon effect by allowing water to rush from the water tank to the toilet bowl. The contour of the trapway in conjunction with the shape of the flush valve work together to create the siphon effect as the water rushes into the bowl. This system is known for effective waste removal and bowl cleansing.
  • Pressure-Assisted Flush System – this system drastically improves waste removal from the toilet bowl. This powerful flush system has a pressure tank that sits inside the water tank. When the flush handle is pressed, the water in the tank is released with a burst of air from the pressure tank all at the same time. This creates a greater force to push the water and waste from the bowl into the drain pipe. After the flush is complete, the water tank refills with water, and the pressure tank refills with air to be ready for the next flush. It should be noted that this system does produce a louder sound as it involves more pressure during the flush. Compare it to toilets that you see in retail store restrooms. On the other hand, this system is great for reducing water consumption and avoiding clogs.

Be sure to look at the rim design as this will be a big factor in water distribution in the bowl and significantly affect bowl cleaning during each flush.

Bowl Size and Shape

The shape of the bowl is not just a concern for space but also comfort. Bowls are typically round or elongated. Round bowls are usually a good choice if small children or small adults will be the primary users. However, elongated bowls are often thought to be more comfortable for adults. Keep in mind, that both round and elongated bowls come in various dimensions so you should be able to find the right size and shape.

Bowl Size and Shape

Ease of Cleaning

As you select a toilet body style, choose models that have a concealed trapway and smooth surfaces. These are easier to clean which saves you time.


There are various materials that toilets are made of. Some are durable while others are not. There are two primary materials commonly used:

Porcelain/Ceramic – common choice as it is affordable while also being durable and smooth. Its low porosity makes it resistant to bacterial growth which can lead to foul smells. Porcelain is also resistant to breakdown caused by cleaning chemicals used for sanitization. Lastly, porcelain is resistant to scratching.

Vitreous China – a glass-based enamel that is used to coat porcelain/ceramic to give it more density and shine.

Both are good options so choosing between these two materials comes down to a personal preference.

Noise Control

Noise is something that many people don’t think about until after they have already installed their new toilet. The flush system will heavily influence the intensity of the flush and thus the level of noise during the flush. For instance, if the bathroom is located close to a bedroom, you wouldn’t want to put a toilet with a “pressure-assisted” flush system (sounds like the toilets in retail stores) in that bathroom because it will disturb anyone who stays in that room. A “tornado” or “double-vortex” flush system might be more appropriate for that particular bathroom.

Seat Height

Seat height is a very important feature when buying any type of toilet. It would not be very comfortable for a tall person to purchase a short toilet and the same for a shorter person to purchase a tall toilet. In the U.S., you will likely hear the term “standard height” which is about 14.5″ from the floor to the top of the toilet bowl. The other term you may hear is “comfort height” or “ADA height” which refers to a height of about 16.5″.

Manufacturer Reputation

User Reviews

In today’s society, user reviews are a very useful source when deciding on a purchase. Do your research and read user reviews. See if there are common complaints about a certain product or model. Whether good or bad, if many people are saying the same thing, there is likely some degree of truth to what they are saying.


Choosing a strong flushing toilet that will accommodate your needs functionally and aesthetically is an important decision to make. There are many factors to take into consideration. I hope you have found this information useful and that it assists you in making a decision that you are happy with for years to come.

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Frequently Asked Questions

Q: What is the standard height for a toilet in the U.S.?

A: The standard height for a toilet in the U.S. is approximately 14.5 inches from the floor to the top of the toilet bowl.

Q: What is the meaning of “comfort height” or “ADA height” in the context of toilets?

A: “Comfort height” or “ADA height” refers to a toilet that has a height of about 16.5 inches from the floor to the top of the bowl. This height is generally more comfortable for adults and complies with the Americans with Disabilities Act guidelines.

Q: Where does the reputation of a toilet manufacturer come into play when choosing a toilet?

A: The reputation of a toilet manufacturer is important as it often reflects the quality of their products, their customer service, and the warranties they offer. Well-known manufacturers also typically design their toilets to meet certain standards and certifications such as ADA and WaterSense.

Q: What are some reputable toilet manufacturers?

A: Some well-known and reputable toilet manufacturers include Kohler, American Standard, and Swiss Madison.

Q: How can user reviews help when choosing the best flushing toilet?

A: User reviews offer first-hand experiences and insights which can be very helpful when deciding on a specific model or product. Paying attention to common complaints or praises can offer a more realistic expectation of the product’s performance.

Q: Are name-brand toilets always better?

A: While not always the case, name-brand toilets often provide more reassurance in terms of quality, customer service, and warranty. They may cost more, but the additional investment often provides peace of mind.

Q: How do I choose the best flushing toilet according to my needs?

A: Choosing the best flushing toilet involves considering various factors including the height of the toilet, the reputation of the manufacturer, user reviews, and specific personal needs for functionality and aesthetics.

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