Pressure-Assist Toilet: What is, How it works, Pros Cons [Explained]

Pressure-assisted flush toilets are better known for their efficient flushing performance. It appears like a typical tank-like toilet, and people drain it in a conventional manner as well. The element that makes it the toilet industry’s GODFATHER, though, is its Strong flushing system!

A pressure-assisted toilet uses a tank-in-tank configuration and has a pressure cartridge within the main tank. This pressure cartridge holds water inside, placing pressurized water on top. As flushed, the compressed air pushes water into the bowl at such a high pressure that the waste material is quickly forced deep down the drain line.

And no clogs. No multiple flush ups are needed. Only a single flush is enough to dissolve solids and particles in a snap!

This makes pressurized toilettes the perfect choice for commercial applications, water-efficient households, and households where a family member tends to plug the toilet often.

Pressure Assist Toilet vs Standard Gravity Toilet: What’s The Difference?

There are basically two main toilets: gravity-flow and pressure-assist.

The gravity-flow toilet, a simple form of toilet comprising water within the toilet tank, is the most common. A pressure-assist toilet is distinguished from a gravity-flow toilet in one department – the interior of the toilet tank.

If you look at a gravity-flow toilet tank, water is the key element. If a pressure-assist toilet tank is opened, an adjacent smaller tank will be apparent. So it’s kind of a small tank located inside a big tank.

Pressure-assisted toilets provide a tank inside another tank to generate a significant volume of air pressure within tanks. This pressure causes more water to linger within the toilet tank, resulting in a more effective flushing output and a cleaner toilet in the process.

Pressure-assist flushing toilets are more widespread in commercial applications, such as restaurants, malls, and hospitals. But now they’re also becoming common in family residences.

Does your family need one too? Yeah of course, and here’s the explanation.

1). It flushes solid waste with ease.

Pressure-assisted toilets are ideally adapted to flushing down solid waste – all thanks to the compressed air pressure inside the tank. It will drive the waste deeper into the sewerage lines by utilizing greater intensity than traditional toilets. This means that it does not come out again, unlike in most gravity models.

Furthermore, various types of conventional toilets differ. If you choose to stick to low-cost models, you could be left with an unreliable flushing device.

But with the help of a pressure flush, you can make sure you’re not getting this problem with any model you choose.

2). It does not clog, no matter how large the stool is.

You never have to worry about clogging – all thanks to its strong flushing.

A widespread issue with old home pipes is that the flushed solid waste comes up again because of the structure of the pipes.

However, this is not at all an issue for toilets backed by pressure. It drives the solid waste as far as it can through the plumbing grid, beyond the sewer line sticking points.

3). It is water-efficient.

You would assume that more effective flushing results in higher water use, right? But with pressure assistance, it’s the exact opposite.

Since the friction generated by the compressed air gets the brute force it requires, it doesn’t require too much water. The typical water use is between 1.1 and 1.2 gallons per flush. That’s fewer than the average 1.6 gallons of water required per flush for a traditional toilet.

If your home still has the old 90’s toilet, upgrading it with a pressure toilet can save you up to 4,000 gallons annually.

4). It’s money-saving.

As a consequence, you will get major cash savings, as well. It may be a costly purchase, but it pays off in the longer term. It also has fewer moving pieces, which renders it less prone to crack. You can save on repairs because you don’t need to have it as much.

5). It’s not going to trigger sweating.

Gravity-flush toilets tend to condense and sweat in hot and humid conditions. That’s because the water is within the air bladder and not inside the tank itself. This stops condensation from forming within the tank, which often adds to greater bathroom humidity.

It is better to avoid this because, with time, it will cause damage. It will drip into the floor of your toilet. The moisture makes the floor wet which may cause the floor to decay. Provided enough time, the floor will be damaged and permanently stained by water drops.

6). It ensures a clean toilet bowl 24/7.

The pressure assist mechanism keeps the toilet bowls clean and smell-free as well. This is because the debris and blotches on the sides of the bowl are properly washed clean by the heavy rush of water. The toilet bowl holds a higher water volume, which also ensures cleaner walls.

You end up saving water in the sense that you don’t have to flush back and forth to get rid of the stains on the sides. Moreover, you have to disinfect it less often so the use of toilet cleaning detergents would be limited as well.

This way, you’ll save a few bucks per month, but the more meaningful effect is not on your wallet, but on the ecosystem. The usage of fewer washing products decreases the volume of chemicals you flush into the environment.

Pressure Assisted Toilets: The Good

Performance. Pressure-assisted toilets are far more reliable owing to their strong flushing mechanism. There is scarcely ever a need to flush again and toilet clogs are uncommon, even in aged pipes.

Low maintenance. A pressurizing toilet has less moving components, rendering it less prone to break down and servicing.

No condensation. Since these toilets are not influenced by humid conditions, many homeowners and business owners prefer pressure-assisted toilets. Since the two-tank design eliminates condensation and sweat, the moisture in your bathroom does not increase.

More powerful. In contrast to conventional gravity versions, the toilet is significantly stronger and flushes more waste with less water.

Savings. Because of the powerful flushing mechanism, these toilets remain stain free and cleaner. This minimizes the number of chemical cleaners required to keep the toilet clean. So you are not only saving money on commercial toilet cleaners but also the number of contaminants entering the atmosphere is limited.

Pressure Assisted Toilets: The Bad

Noise. Many owners have disliked the loud flushing noise of pressure-assist toilets.

Parts availability. The internal dynamics of a pressure-assisted toilet are not like a gravity-flow toilet. Since most retail shops do not routinely stock certain components, it is very challenging to replace or restore parts of a pressurized toilet. And it’s really challenging to DIY.

Price. Pressure-assisted toilets are more costly than standard gravity-flow toilets. While a typical gravity-flow toilet can be bought for between $120 and $300, a pressure-assisted toilet can cost as much as $500.

Difficulty with flushing. The flush lever on the pressure-assist toilet must be moved more forcefully than on the gravity-flow fixture. This will make it impossible for a small child or a vulnerable adult to work.

Our Favorite Pressure Assisted Toilet


This toilet is something so Strong that it is ideal for usage in high-traffic commercial areas where a number of users also use the bathroom. It is also suitable for big families residing in tiny households where a single bathroom is shared by many family members.

The best feature that lets this label outrank all other products in terms of power flushing, beginning with the specs, is its robust pressure-assisted EcoFlush technology.

The Zurn Z5560 utilizes a pressure-assisted siphon jet flush operation to push waste deep down the sewer lines in a matter of moments, no matter how dense the waste is or how many people back-to-back use the bathroom. The flushing pressure ranges from 20 psi at its lowest to 80 psi at its maximum. You’re almost assured a sparkling clean toilet bowl of clear water with such a good flushing mechanism.

Also Read:

Best Pressure Assist Toilets of 2021

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