More than 200 years have passed since the invention of the flush toilet, yet that time has seen major improvements. Nowadays, indoor toilets and plumbing are standard in most homes.

But the sheer number of toilet flushing devices could surprise homeowners.
Every flushing mechanism has advantages and disadvantages. Let’s look at it.

TOILET FLUSH SYSTEM TYPES American Standard, Kohler, and Toto are the top three toilet producers in the US. Each one has developed proprietary technology that uses less water while providing a more effective flush.

Your water bill will be cheaper the fewer flushes you do per day.

Most toilets employ a gravity-based flushing mechanism. To eliminate even more solid waste, a gravity flush toilet can also be used in conjunction with devices like a dual flush system and siphoning action.

Here are a few examples of the various toilet flush mechanisms:

toilets with a gravity flush toilets with two flushes WCs with pressure assistance toilets with a double cyclone flush system Tornado toilets flush toilets with two vortex flushes tower-shaped restrooms Even though gravity flush systems are the most prevalent, improvements to the toilet tank, siphon, nozzles, and trapway can result in a more satisfying full flush.


Solid and liquid waste from the toilet are removed using gravity systems in a conventional manner. When the flush valve opens and gallons of water pour through the pipes, the toilet’s contents are flushed away.

In order to avoid a clog, the water flow pushes the waste down and washes the toilet bowl.
The bowl is positioned atop the water tank. Through siphon flush jets, water enters the tank from the bottom up.

The pressure inside the bowl helps the trap suck waste out. Waste is vacuumed into the sewer or septic tank when the pressure is higher than the pressure in the drainpipe.

Gravity-based systems are used in most toilets. However, you could require something different if your basement has a toilet that is situated underneath the sewer pipes.


The foundational element of the pressure-assisted system is gravity. However, it also uses compressed air.
Even a partial flush in this method has the capacity to completely empty the bowl.

Additionally, toilets that are situated below the sewage line employ this type of arrangement. The pressurized air design helps push the materials up through the pipes as gravity cannot be used to flush them.

A macerator is typically used in below-ground toilets to break up solid waste before it enters the pipes.
A “pressure vessel,” a plastic tank, is the principal working component. It is located in the tank of the toilet.
This container fills with air rather than water. The air pressurizes the water supply line as the water flows through it.

The pipes and the toilet bowl are quickly traversed by the pressured water. Because of their strength, they are much less likely to clog than conventional gravity systems.

However, they also have a tendency to be noisy, which some people find annoying.

People who desire to be as environmentally conscious as possible may be drawn to dual flush systems. Ever come across a toilet with two flushing options?

The first is designed for solids, while the second is for liquids.
The liquid button causes the toilet to refill with less water. In this manner, the trash is eliminated without using too much water.

By pressing the solid button, you can flush more forcefully and with more water. Large amounts of waste can be siphoned out and the bowl is cleaned as a result.

Most of these versions have buttons incorporated into the tank lid. Some, meanwhile, might employ flush levers in their place.
There are two flush valves on the tank itself. These are put together over the standard valve.

The valve will seal and release a specific volume of water into your toilet bowl depending on which button is pushed. The solid button will include greater water flow, whereas the liquid button will enable less water flow.


The concept of the double-cyclone was developed by Toto. Only Toto is authorized to use the term “double cyclone” as a descriptor, despite the fact that other businesses may have copyrighted their own variations.

The majority of the business’s contemporary restrooms include this technology.
A double-cyclone toilet flushes by sending water via two sideways-facing nozzles. The majority of rival solutions simply employ one nozzle.

The water can whirl around the bowl with the force of a cyclone thanks to the two nozzle configuration. This results in less overall upkeep because more of your waste is flushed each time.

Toto is one of the most well-known brands on Amazon because of this.

The nozzles’ direction causes each “cyclone” to form. They spray water sideways, which allows it to quickly swirl around the bowl before settling as a result of gravity.

of a tornado
A tornado flush system is another another choice offered by Toto. Many of their most current models have this integrated.
It enhances their cyclone engineering.

These toilets have three sideways jets as opposed to simply two. As a result, water can swirl much more violently, resembling a tornado rather than a cyclone.

Additionally, compared to the cyclone flushing method, this one is quieter. Less noise is made as water travels through the pipes since there are more points where it might enter.

Because a scouring brush may not be able to reach the toilet bowl’s rim, tornado flushes are the best option for cleaning. Overall, they lengthen the intervals between cleanings and simplify maintenance.

TOTO’S OTHER SYSTEMS The E-Max and G-Max are two further patented toilet flushing technologies made by Toto.
Each flush on G-Max systems uses 1.6 gallons. E-Max systems consume only 1.28 gallons for each flush, making them more environmentally friendly.
The EPA has acknowledged that they adhere to the best water conservation guidelines.

Cyclone or tornado technology may be incorporated with G-Max and E-Max systems. The E-Max system has the best impact on your water bill, which is the most important fact to know.

Most frequently found in Kohler models are tower systems, sometimes known as canister systems.
There is a canister toilet flapper with this system. It is located inside the tank and attaches to the toilet handle.
But the tower design totally rises up as opposed to the conventional flapper alternative. This enables water to enter the toilet bowl at any angle.
The water generates more flushing power since it can penetrate much more quickly.

The Class Five toilet models are the best illustration of this technique from Kohler. These have a larger flush valve to let in more water at once into the bowl.

More water enters than exits, which is more significant. More trash is sucked out of the bowl as a result of increased pressure caused by the bowl’s increasing volume of water.

The technology makes it possible to empty your toilet without wasting a lot of water.

VORTEX DOUBLE FLUSH American Standard toilets often include a double vortex mechanism. The American Standard twin vortex uses two side-by-side nozzles to spray water into the bowl, similar to Toto’s cyclone technology.

A whirlpool is created by the water’s flow.
The two nozzles are where most of the water is directed. The trapway receives a small bit of each flush, though.
This makes it possible to clear the trapway more rapidly, which is good when flushing a large amount of garbage at once.

The most recent American Standard products also employ an enlarged flush valve. For instance, the flush valve on the Champion 4 toilet has double the length of the conventional 2-inch design at 4 inches.

The amount of water that can enter at once is doubled.
LAST THOUGHTS The method a toilet uses to remove waste from the bowl is called the flush system. Various models employ various systems.
The most robust systems can flush garbage through the system without any pipe jams.
Gravity-flushing toilets are the norm. Waste is propelled out of the bowl and into the sewer pipes with the use of gravity and simple suction.

Some toilets are located beneath the sewer line, making it impossible for them to use a gravity system. These toilets often employ a pressure mechanism when the material needs to be pushed upward.

In order to forcibly drive the trash upward, this pressurizes the water and passes it through a chamber of pressured air.
One of these two is frequently combined with other flushing systems. Some are also produced by a particular business.
For instance, Toto has a monopoly on the cyclone flushing market. They are also in charge of flushing tornadoes.

They are not the only business to use a two-jet system, but they are the only one to market themselves as “cyclone.” Similar technology is used by American Standard in their twin vortex systems.

The tower systems from Kohler are distinctive in that they increase flush pressure and speed. They can, however, be a little boisterous.





Enter your email address below to

subscribe to my newsletter