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What is the Difference Between a Gravity Flush Toilet and a Pressure Assisted Toilet?


There are a variety of toilets available today

There are various types of toilets available today; however, it can be challenging to choose the one that suits you. There are many designs and brands, as well as toilets made from a variety of materials. Some use little while others use a lot of water, depending on the style and specifications.

Gravity Flush Toilets vs. Pressure Assisted Toilets

white flush toilet

The toilet you chose depend on your needs

Flushing systems are categorized into gravity and pressure assisted. Below are the differences between the two:

1)    Gravity Toilets

Gravity toilets are common, and they have been around for many years. The toilet works when the flush button is pushed; this lifts the flush valve in the toilet tank, then water from the tank flows out.

Water is released in the bowl through rim-shaped holes. Since the water is released from a high place, it creates gravity, which pushes water in the wastage pipe straight to the septic tank. When the flushing activity ends, the water supply pipe allows water to fill the tank. This continues until the in-built float valve closes the flow when the water is sufficient. There are a variety of specifications when it comes to gravity toilets. You can easily repair these toilets, which means you don’t have to look for a plumber most of the time.

  1. Double Cyclone Flushing Toilet

This flushing system is an invention of the largest toilet manufacturer worldwide, Toto. Toilets with this system have a rimless design rather than featuring rim holes, which distribute water around the toilet bowl.

Two nozzles are present on the sides of the bowl. When the water is flushed, water comes out of the nozzle and goes down the bowl in a spiral-like manner at high speed. This activity creates a powerful centrifugal force greater than normal gravitational force. This means that it cleans the toilet bowl thoroughly using little water.

  1. Dual Flush

Most people think that toilets with dual flush have double power and water consumption; however, this is not true. These toilets allow you to use the full or partial flush. The full flash is usually for solid waste, while the partial flush is for liquid waste.

How Much Does it Cost?

Gravity flush toilets are popular in the market and homes. Although there are many specifications and designs to choose from, they are the most affordable toilets today. Gravity flush toilets are lower in price compared to other toilets in the market; this is why many folks prefer them. They are affordable and reliable. You will find out that the most expensive gravity flush toilets are lower in price in comparison to their counterparts.

2)    Pressure Assisted Toilets

20 US dollar banknotes on toilet bowl

Choose a toilet that is pocket-friendly

These types of toilets are new in the market and not as popular as gravity flush toilets. They work by utilizing a combination of pressurized air and water. There is a water tank as well as a compression tank located in the water tank.

When the tank is full, the compression tank fills with air as well. When you flush the toilet, the water tank releases water into the bowl, which is sucked by the pressurized air. This force is greater compared to the one provided by gravity. This means you can get rid of more waste in one flushing.

How Much Does It Cost?

Pressure assisted toilets are quiet affordable; however, it depends on the brand you choose. The most expensive pressure assisted toilet has many unique features that other similar toilets lack. For instance, it might feature an automatic flushing system as well as utilize remote control on different features.

When is the Best Time to Use a Pressure Assisted Toilet?

Pressure assisted toilets come in handy in many situations; for instance, they are effective. They are efficient compared to other toilets because of their powerful flush system. You don’t need to flush it twice, and it is very rare to find a clogged pressure assisted toilet. Even old toilets have fewer problems.

You can use a pressure assisted toilet when you want to save water and money. This toilet uses 1.1 to 1.2 gallons of water in each flush compared to a dual gravity-flow which utilizes 1.3 gallons in each flush. This means you use a few gallons annually.

If you want to save money on repair and maintenance, a pressure assisted toilet is ideal for you. This is because this toilet has few movable parts, which reduces the chances of breaking down and requiring repair. Most homeowners love pressure assisted toilets because they are not affected by humidity. This is because the tank is built to reduce condensation.


Although gravity flush toilets have been around for many years, they are still popular compared to pressure assisted toilets. They are used in homes and businesses because they are cost-effective. Pressure assisted toilets, on the other hand, flush more waste at once and save water. Consider your needs and budget before getting any of the toilets.