Understanding Rear Discharge Toilets

Rear discharge toilet problems can be caused by clogs, leaks, or improper installation. To prevent these issues, it is important to choose the right toilet for your bathroom and to have it installed by a professional.

If you’re in the market for a new toilet or are experiencing issues with your current rear-discharge model, it’s important to understand the common problems that can arise. Unlike standard toilets, rear-discharge models have the waste outlet at the back of the toilet rather than the bottom, which can lead to unique issues. Some of the most common problems include clogging, leaks, and improper installation.

In this article, we’ll explore these issues in more detail, as well as provide tips for troubleshooting and preventing toilet problems from occurring.

What Are Rear Discharge Toilets?

Rear discharge toilets are becoming more and more popular among home and business owners, and for a good reason. Unlike traditional toilets that use a gravity-based system to flush waste down a drain positioned on the floor, rear discharge toilets are designed with the discharge outlet at the back.

This innovative design offers a wide range of benefits that make it a smart choice for many people. In this post, we’ll explore in detail what rear discharge toilets are and how they function differently from traditional toilets.

Definition And Functionality Of Rear Discharge Toilets

Rear discharge toilets are designed with the waste outlet at the back, unlike traditional toilets that have the outlet positioned in the floor. These toilets work by using a flushing mechanism that sucks the waste through the outlet at the back and into a drainpipe.

Here are some key points to note about the definition and functionality of rear discharge toilets:

  • The design of rear discharge toilets allows them to be positioned along a wall, which maximizes the use of space in a bathroom.
  • They use less water for flushing, which translates to lower water bills.
  • Because the outlet is at the back, it’s easier to access the plumbing for repairs or maintenance.

How They Function Differently From Traditional Toilets

While both traditional and rear discharge toilets serve the same purpose, they function differently.

  • Rear discharge toilets use less water for every flush compared to traditional toilets, which can range between 1. 28 gallons and 1. 6 gallons per flush. This makes them more eco-friendly and can help save on water bills.
  • The rear discharge design of these toilets means they have a different flushing mechanism. The flushing mechanism is centered around the back inlet, which is connected to a waste pipe. When the flush is activated, water enters the bowl, and the waste is carried through the back inlet and into the drainage system in one motion.
  • Compared to traditional toilets, rear discharge toilets tend to be more expensive to install, but the benefits provided outweigh the costs in the long run.

Rear discharge toilets function differently from traditional toilets, and their innovative design provides various benefits that make them an excellent choice for many people. They are eco-friendly, maximize space, and make plumbing repairs easy. Consider investing in one if you’re in the market for a new toilet.

Advantages And Disadvantages Of Rear Discharge Toilets

Rear discharge toilets are becoming more popular fixtures in today’s modern bathrooms. However, like any other toilet types, they have their advantages and disadvantages that you need to consider before deciding whether it’s the best option for your needs. Below we’ll explore the key points you need to know about rear discharge toilets.

Pros And Cons Of Using Rear Discharge Toilets Compared To Traditional Toilets


  • Aesthetically appealing – rear discharge toilets have an attractive look and are perfect for modern and sleek bathroom designs.
  • Saves space – these kinds of toilets are ideal for small bathrooms since they do not require as much floor space as traditional toilets.
  • Easy to clean – rear discharge toilets don’t have a base in which dirt or dust can accumulate; therefore, they tend to be easier to clean and maintain than conventional models.
  • Flexibility – the location of the waste outlet in rear discharge toilets allows flexibility in position and placement.
  • Quicker to flush – rear discharge toilets’ design allows for an easier flush, requiring less water volume.
  • Better for healthy hygiene – with no crevices between the bowl and the trap way, waste materials are expelled easily and less likely to be trapped thus putting it in a better position in terms of hygiene.


  • Limited variety – due to its unique design, finding a rear discharge toilet with the features you need or the style you want might be challenging.
  • Expensive – compared to traditional toilets, rear discharge toilets tend to be more expensive to purchase and install.
  • Requires special installation – since the waste discharge is situated in the rear, you need to position the plumbing to suit the toilet’s design, which may require additional plumbing work.
  • Limited options for flushing systems – in comparison to traditional toilets, the rear discharge toilet offers limited flushing systems.

How To Determine If This Toilet Type Is Right For Your Needs

Before deciding on whether or not to install a rear discharge toilet, it’s essential to consider the following:

  • Your bathroom size – if you have a cramped bathroom, a rear discharge toilet is the perfect option for you.
  • Plumbing installation costs – the cost of plumbing installation for a rear discharge toilet may be higher than the traditional toilet.
  • Your budget – rear discharge toilets tend to cost more than traditional toilets, so you must budget accordingly.
  • Your personal preference – consider the design and features you desire in a toilet before making a purchase.

Rear discharge toilets are great options for those who prioritize cleanliness, space-saving, and modern design, but they might not be suitable for everyone’s needs due to the factors mentioned above. Ensure to consider all aspects carefully before making a final decision on whether a rear discharge toilet is the right choice for your bathroom.

Clogging In Rear Discharge Toilets

Rear discharge toilets have become increasingly popular due to their advantages over traditional floor-mounted toilets. However, these toilets also come with their fair share of problems, such as clogging. In this section, we will be discussing the causes of clogging in rear discharge toilets and provide troubleshooting tips to unclog them efficiently.

Additionally, we’ll explore the use of the plunger and other tools to help tackle this issue.

Causes Of Common Toilet Clogs

A toilet clog can occur for various reasons, including:

  • Flushing non-flushable items such as baby wipes, feminine hygiene products, and paper towels.
  • Overloading the toilet with too much toilet paper or flushing large chunks of waste.
  • Hard water buildup causing mineral deposits to accumulate and clog the pipes.

Troubleshooting Tips For Common Toilet Clogs

Fortunately, most toilet clogs can be resolved with simple troubleshooting techniques, including:

  • Using a toilet auger or snake to unclog the toilet by pushing the clog through the pipes.
  • Pouring hot water directly into the toilet bowl to break down any clogs.
  • Adding dish soap to the bowl, allowing it to sit for several minutes, and then flushing to clear the clog.
  • Applying a mixture of baking soda and vinegar to dissolve mineral buildup in the pipes.

The Use Of Plungers And Other Tools

When troubleshooting techniques don’t work or the blockage is severe, the use of plungers or other tools such as a wet-dry vacuum or toilet snake may be necessary.

  • Fill the toilet bowl with enough water to cover the plunger’s cup.
  • Place the plunger vertically over the drain hole in the toilet bowl.
  • Use a firm, up-and-down motion to create a vacuum that will push the clog through the pipes.
  • Continue plunging until the clog has been successfully cleared.

Clogging can occur in rear discharge toilets due to several reasons, but with the correct knowledge and tools, resolving the issue can be done with ease. Troubleshooting tips such as adding hot water, dish soap, or a baking soda and vinegar mixture can help dissolve clogs.

If these techniques fail, using a plunger or other tools such as snakes or wet-dry vacuums will be the next step to tackle the issue.

Leakage From Rear Discharge Toilets

Rear discharge toilets are increasingly becoming popular after most homeowners discovered that they offer a more powerful flush than standard toilets while also taking up less bathroom space. However, these toilets have their own unique set of problems, one of which is leakage.

Leakage from rear discharge toilets is a common issue that can cause extensive damage if not handled promptly. In this post, we will discuss the common causes of toilet leaks and how to prevent them, as well as the possible consequences of ignored toilet leaks.

Common Causes Of Toilet Leaks And How To Prevent Them

Damaged Flange

  • A broken or damaged flange is one of the most common causes of leakage from rear discharge toilets. Flanges support the toilet’s base and prevent wastewater from leaking out.
  • Replace the damaged flange by removing the toilet and unscrewing the old flange from the floor.
  • Install the new flange securely with bolts.

Faulty Wax Ring

  • A wax seal ring forms a watertight seal between the toilet and the flange. It can wear out over time or become dislodged, leading to toilet leakage.
  • Turn off the water supply to the toilet.
  • Unscrew the bolts that secure the toilet to the flange and lift the toilet off the wax ring.
  • Clean the surface around the flange and replace the old wax seal with a new one.

Cracked Toilet

  • A crack in the toilet can allow water to seep out, leading to leakage.
  • Turn off the water supply and flush the toilet to empty the tank.
  • Remove the toilet by unscrewing the bolts and lifting it off the flange.
  • Inspect the toilet for cracks and replace it if necessary.

Possible Consequences Of Ignored Toilet Leaks

Ignoring toilet leaks can lead to serious consequences, such as:

  • Structural damage to your home’s foundation due to water seepage.
  • Growth of mold and mildew, which can cause health issues.
  • Reduced indoor air quality, which can trigger breathing problems and allergies.
  • Increased water bills if the leak is not fixed promptly.

Rear discharge toilets are an excellent choice for homeowners, but they require proper maintenance to function effectively. Leakage is one of the most common problems associated with these toilets, and it should be addressed promptly to prevent severe consequences. Knowing the common causes and how to prevent them can help reduce the likelihood of leakage and ensure that your rear discharge toilet remains functional and effective.

Flushing Issues With Rear Discharge Toilets

Rear discharge toilets are a great alternative for modern bathrooms with a wall drain instead of a floor drain. Even though these toilets are efficient and look sleek, there can be various flushing issues that you may encounter. In this blog post, we will discuss the most common flushing issues with rear discharge toilets and how to troubleshoot and fix those issues.

Reasons Why A Rear Discharge Toilet May Not Flush Properly

Several reasons can cause flushing issues for rear discharge toilets.

  • Clogs – most commonly, clogs can occur in the drain or the trap.
  • Mineral build-up – over time, mineral build-up can accumulate in the flush valve or rim jet, which may block the water flow.
  • Low water pressure – water pressure that is too low cannot move waste through the trap and out of the drain line.
  • Faulty flapper – a faulty flapper can restrict water flow and can cause the water level in the toilet bowl to drop.

How To Troubleshoot And Fix Defective Flushing Mechanisms

If you are experiencing flushing issues with your rear discharge toilet, follow these steps to troubleshoot and fix defective flushing mechanisms.

  • Clean the flush valve – take the lid off the toilet and inspect the flush valve. If it appears dirty, use a scrub brush to remove mineral buildup.
  • Check the rim jet – remove any mineral buildup in the rim jet with a wire hanger or a small brush by inserting it into the jet and twisting it.
  • Check for clogs – use a plunger to remove any clogs in the drain or the trap.
  • Adjust the water pressure – if the water pressure is too low, adjust the valve located near the water meter.
  • Replace the flapper – replace the flapper if it appears worn or damaged. A new flapper can improve water flow and prevent water leakage.

A malfunctioning rear discharge toilet can cause serious problems in your home’s plumbing system. If you experience flushing issues with your rear discharge toilet, follow these troubleshooting steps to fix the issue and prevent any additional damage to your plumbing.

Regular Toilet Maintenance

Rear discharge toilets are an excellent space-saving option for many homeowners. They are a more discreet option than conventional toilets, providing the convenience of being able to place them where standard toilets cannot go. However, regular maintenance is essential for any toilet, and this is particularly true of rear discharge models.

Failure to keep them in top condition can lead to a range of issues. In this section, we’ll explore why regular cleaning and maintenance is so crucial, and offer some recommendations when it comes to cleaning products and techniques.

Importance Of Regular Cleaning And Maintenance Of Rear Discharge Toilets

Keeping a rear discharge toilet clean is important for several reasons:

  • It can help prevent unpleasant odors and the buildup of germs and bacteria.
  • It can stop the toilet from becoming blocked or clogged.
  • It can help keep the toilet functioning correctly, including preventing leaks.

To achieve these goals, it is essential to perform regular cleaning and maintenance on the toilet. Even if it appears clean, keeping up these tasks can help prolong the life of the unit.

Recommended Cleaning Products And Techniques

When it comes to cleaning a rear discharge toilet, it is vital to use the right products and techniques to avoid damaging the toilet.

  • Use a soft-bristled brush or sponge. Avoid harsh abrasives or brushes that could scratch or damage the porcelain.
  • Clean the toilet bowl and seat regularly with a non-toxic, mild cleaning product. Avoid using any harsh chemicals such as bleach as they can damage the toilet over time.
  • Remember to clean the underside of the toilet bowl, as this is an area that often gets overlooked during regular cleaning.
  • If there is heavy staining, consider using a more robust cleaning solution such as borax or vinegar.
  • Finally, check the toilet regularly for signs of damage, leaks, and other problems. Early detection of issues can help prevent more significant problems later on.

By following these tips and performing regular cleaning and maintenance, you can keep your rear discharge toilet functioning smoothly and avoid the issues associated with poor maintenance.

Proper Use Of Toilet

As homeowners, we all want our bathroom experience to be comfortable and convenient. Rear discharge toilets offer many benefits over traditional toilets, but they also come with their fair share of unique challenges. When not used correctly, these toilets can cause some problems.

In this blog post, we will focus on the proper use of toilet and appropriate usage tips that can prevent rear discharge toilet problems.

Appropriate Usage Tips That Can Prevent Rear Discharge Toilet Problems

When it comes to proper toilet use, the following tips can help you avoid potential problems:

  • Never flush anything other than toilet paper or human waste down the toilet. Items like tampons, sanitary pads, wet wipes, and paper towels can clog your toilet and cause significant damage to your plumbing.
  • Avoid using harsh chemicals or cleaners when cleaning your toilet or bathroom. These products can cause damage to the toilet bowl and pipes.
  • Don’t use too much toilet paper. Using an excessive amount of toilet paper can lead to clogs and other plumbing issues.
  • Keep the toilet seat and lid closed when not in use. This practice prevents children or pets from falling in and damaging the toilet.

How To Educate Children And Guests To Maintain The Integrity Of The Toilet

Teaching children and guests the importance of proper toilet use can help maintain the toilet’s integrity and prevent rear discharge toilet problems.

  • Remind them about the proper items to flush down the toilet. Do this in a friendly and informative manner to avoid embarrassing situations.
  • Show them how to use the toilet correctly, ensuring that they understand its unique features.
  • Post signs near the toilet that remind them to keep the lid closed and flush only appropriate items.
  • Let guests know that the toilet has unique features and explain to them how to use it.

Proper toilet use is vital to prevent rear discharge toilet problems. By following simple guidelines and educating both children and guests, you can maintain the integrity of your toilet and enjoy its many benefits for years to come.

Final Thoughts On Rear Discharge Toilet Problems

As we come to the end of this article discussing rear discharge toilet problems, it’s crucial to recollect some vital points that we have discussed. It’s evident that rear discharge toilets have their benefits, but it comes with its significant issues too.

We looked at the problems that might arise if not adequately maintained and addressed promptly.

Recap Of The Key Points Of The Article:

  • Rear discharge toilets have benefits like easy installation, saving space, reduced noise, and odor.
  • The primary problems are blockages, leakages, and odor.
  • Avoid flushing non-degradable items such as wipes, feminine hygiene products, diapers, and paper towels.
  • The use of improper cleaning products can lead to corrosion, blockages, and leakages.
  • Promptly address any issues that arise, as leaving them unattended could lead to significant damages to the toilet.
  • Regular cleaning and maintenance are essential and will prevent odor, corrosion, and other problems.
  • Following the manufacturer’s instruction goes a long way in ensuring the longevity of the rear discharge toilet.

Emphasizing The Importance Of Proper Toilet Maintenance And Solving Issues Quickly:

Proper maintenance of rear discharge toilets is crucial in preventing the issues mentioned above.

  • Regular cleaning of the toilet and removing any clogs will prevent blockages that may lead to significant issues.
  • The use of proper cleaning agents will prevent corrosion, and regular inspection will help detect issues early, leading to quick fixes.
  • Addressing the issues promptly means that the damage caused will be minimal, and the repairs will be less costly.

To sum it up, proper maintenance of the rear discharge toilet will not only ensure its longevity but also prevent significant problems from arising. Always follow the manufacturer’s instructions, regularly clean the toilet, avoid flushing non-degradable items, and promptly address any issues that arise.

By taking these steps, your rear discharge toilet will serve you efficiently and effectively for years to come.

Frequently Asked Questions Of Rear Discharge Toilet Problems

What Is A Rear Discharge Toilet?

A rear discharge toilet is a toilet where the waste is flushed through a pipe at the back of the toilet.

What Are The Advantages Of A Rear Discharge Toilet?

Rear discharge toilets have the advantage of being space-saving, environmentally-friendly, and easy to clean.

Why Is My Rear Discharge Toilet Not Flushing Properly?

Your rear discharge toilet may not be flushing properly due to a blockage in the pipes or a malfunctioning flush system.


Finally, it’s safe to say that rear discharge toilets may come with their unique set of problems, but they are also a convenient addition to modern bathrooms. If properly installed, maintained, and used, most toilet issues can be avoided, leaving you with a comfortable and hygienic toilet experience.

However, it’s always advisable to seek professional help when dealing with critical plumbing issues to ensure your safety and prevent further damage. Rear discharge toilets are not as problematic as most people assume. Installing them in your bathroom can provide you with privacy, durability, and functionality, leading to a better experience.

Overall, as with any household appliance, knowing how to operate and care for them is the key to a long-lasting and trouble-free toilet.

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