High-Efficiency Toilets vs. Regular Toilets

You are probably asking yourself, “What’s the difference between a high-efficiency toilet and a regular flush toilet?” Maybe you are completely new to the topic of toilets and have never used either type. Maybe you’re confused about what a high-efficiency toilet is? Or maybe you’ve used both types in the past and are wondering whether one is better than the other. 

High efficient toilets are modern, water conservational, and attractive items facilities in your bathroom. They are designed based on flushing design, conservation models, and aesthetics for your bathroom. Regular toilets have large bowls, consume an average of 5-7 gallons per flush, and use gravity to push waste to the sewer. It’s the oldest facility and has various designs.

There are many different types of toilets that you can buy.

In the market, there are both high-efficiency and regular toilets, which one is better? This guide will analyze both to see which is better based on real-world results.

Why Would You Want a High-Efficiency Toilet?

Here are three benefits of owning a high-efficient toilet.


You’ll save a lot of money with high-efficiency toilets because they consume less water than normal toilets. If you have old-school toilets that utilize anywhere from 3 gallons to 6 gallons per flush, this can result in a monthly savings of 20% or even more.

a man holding money beside the toilet bowl
Image from City of Cedar Rapids Iowa Government

Additionally, increased efficiency may mean fewer repairs.

Incredible Experience

Despite using less water, high-efficiency toilets are as powerful as conventional versions. You’ll see the water left with the same force as a jet engine as soon as you release the handle. Not only does this prevent sewer backups, but it also removes waste.

Reduce your water consumption. 

Using a Toilet with a Dual-Flush System, common in Europe, Australia, and other parts of the world, is a great way to save water and money. There are two buttons on these toilets, one for number one and the other for number two. When used properly, the dual-flush system consumes less water than even most high-efficiency toilets, lowering your daily water usage and increasing your savings.

How Is a High-Efficiency Toilet Different From a Regular Toilet?

Water use in the household is dominated by the toilet, which accounts for nearly thirty percent of the total indoor water usage in an average home.

Let’s check some common differences between the two types of toilets.

TOILETBowl hole Water levelFlush valveFlushingGallons per flush
RegularThe outlet hole is further down the bowl.In the bowl, water is at a higher level.A smaller flush valve requires more pressure.Gravity flushing.5-7 gallons per flush
High-EfficientThe outlet hole is located near the center of the bowl.There is low water near is at the front.The larger flush valve provides more pressurePressurized power flushis 1.28 gallons per flush.

A more efficient toilet helps you achieve a more powerful flush that minimizes clogging. It reduces the amount of water consumed per flush which saves you money. 

What Are the Different Types of Toilets and Their Prices?

We’ll classify the different types of toilets based on their flushing systems and their aesthetics. 

Types of High-efficient Toilets

The three types of high-efficiency toilets are as follows.

Single flush– Single-flush toilets typically use 1.6 gallons per flush, although they can be far more efficient. Nearly 70 of the 3,986 efficient toilets listed on the EPA website consume less than 0.80 gallons every flush. All of them rely on a single-flush gravity system.

single flush toilet
Image from Tile Express

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Dual-flush toilets are toilets that have two flushes.For a full flush, a dual-flush toilet uses 1.6 gallons, and for a half flush, 0.8 gallons. 

Dual-flush toilets are rated lower than top single-flush toilets on the EPA website because their full flush volume is higher – at least a gallon. Their half-flush volume, on the other hand, might be as little as half a gallon.

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Pressurized flush toilet

Unlike typical toilet tanks, which rely on gravity to flow water into the bowl, pressure-assist toilets store water in a pressure tank and then force it out.

pressure assist 1 1

Although there are efficient versions available, the best of them use 1 gallon of water every flush, making them less efficient than the single- or dual-flush toilets. They are, however, more effective than comparably effective gravity-flush toilets. If your toilets are prone to clogging, a pressure-assist toilet may be the best option.

The average American flushes the toilet five times per day, according to popular belief. With a dual flush toilet, most of them would only require a half-flush, implying that the dual-flush may use less water in practice. 

Unfortunately, this means you can’t only look at flush volume to figure out which toilet is best for your household’s usage patterns. A dual-flush toilet might be better for a toilet near the front entrance, whereas a single-flush toilet might be better for an en suite bathroom.

Types of Regular Toilets

Regular washrooms offer four different styles of toilet each with its unique set of features and applications.

Low-level toilet

low level toilet
Image from Cooper Plumbing

These types of toilets have a small piece of plastic pipe that connects the cistern to the toilet, which is mounted on the wall just above The toilet is flushed with a lever handle or a push button on the cistern.

Toilet with a close connection,

Close-coupled toilets have a cistern that sits on the back of the toilet pan and is flushed with a handle or push button on the cistern. In comparison to low-level systems, close-coupled pans can extend further away from the wall.

Toilet which is drained against the wall

Back-to-wall toilets have a concealed cistern hidden behind a panel or wall to keep the cistern and waste pipes hidden. The toilet is mounted on the floor and placed against a panel or wall. 

The toilet can be flushed with a sensor flush kit, a lever flush, or a push-button flush, all of which can be found through the panel or wall.


High-efficiency toilets have come a long way and are now poised to replace the traditional models that most of us grew up using. The EPA estimates that high-efficiency toilets can save 15,000 gallons of water per year in a household. This is no small feat and something we should continue to push for to conserve our water supply.

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