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In-wall Cistern: Comprehensive Guide 2024


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Have you ever dreamt of a bathroom that feels more spacious, sleek, and undeniably modern? In-wall cistern toilets are revolutionizing bathroom design by offering a stylish and functional alternative to traditional toilets.


Unlike conventional toilets with bulky, exposed cisterns, in-wall cistern systems cleverly conceal the water tank within the wall cavity. This innovative design not only creates a streamlined aesthetic but also unlocks a variety of benefits for homeowners.


This comprehensive guide is here to equip you with all the knowledge you need about in-wall cisterns. From understanding how they work to exploring their numerous advantages and practical considerations, we'll delve deep into this popular bathroom trend.

By the end of this article, you'll be well-informed about whether an in-wall cistern system is the perfect choice to elevate the look and functionality of your dream bathroom.


Understanding In-Wall Cisterns

An in-wall cistern, also known as a concealed cistern, is a revolutionary plumbing system that hides the water tank of a toilet within the wall cavity. This creates a minimalist and sophisticated look in your bathroom, unlike traditional toilets where the cistern sits visibly behind the bowl.


But how exactly does this system work? Imagine a sturdy metal frame installed within the wall behind the designated toilet location. This frame houses the cistern itself, which is essentially a pressurized tank that stores water for flushing. The waste pipes and water supply lines connect to the cistern discreetly within the wall.


When you press the flush plate, typically mounted on the wall in a convenient location, it triggers a mechanism within the cistern. This releases the stored water into the toilet bowl, effectively flushing waste. The cistern then automatically refills with fresh water to prepare for the next use. The entire process takes place hidden from view, contributing to the sleek and modern aesthetic of an in-wall cistern system.


There are two main types of in-wall cistern toilets to choose from, each offering its own set of advantages:


  1. Wall-mounted toilets: These toilets are securely anchored to the wall frame, creating a floating appearance. They are ideal for maximizing floor space, making them particularly suitable for smaller bathrooms or ensuites. Additionally, the absence of a base on the floor simplifies cleaning and promotes a more hygienic environment.

  2. Floor-mounted toilets: While similar in functionality to wall-mounted options, floor-mounted toilets rest on the floor for added stability. They are a good choice for situations where the wall may not be strong enough to support a wall-mounted toilet or when additional support is desired.  Floor-mounted in-wall cisterns can also be aesthetically pleasing, offering a wider range of design options for the toilet bowl itself.

Benefits of In-Wall Cisterns

Incorporating an in-wall cistern system into your bathroom renovation or new build can unlock a multitude of benefits that go beyond just aesthetics. Here's a closer look at some of the key advantages that have made in-wall cisterns a popular choice for modern homeowners:


1. Space-Saving Marvels:  One of the most compelling benefits of in-wall cisterns is their ability to create a more spacious and clutter-free environment in your bathroom. By concealing the bulky cistern within the wall, you eliminate a significant visual obstruction, making the room feel larger and airier. This is particularly advantageous for smaller bathrooms or ensuites where maximizing every inch of space is crucial.   Additionally, the option of wall-mounted toilets further enhances the feeling of spaciousness by freeing up valuable floor area.


2. Modern Aesthetics for the Discerning Homeowner: In today's world of design-focused bathrooms, in-wall cisterns reign supreme. Their minimalist and streamlined design creates a sleek and contemporary look that elevates the entire bathroom aesthetic.  The absence of the bulky cistern contributes to a sense of clean lines and uncluttered space, perfectly complementing modern and high-end bathroom styles.  Whether you favor a minimalist approach or a more luxurious design scheme, in-wall cisterns offer a versatile solution that seamlessly integrates with your vision.


3. Improved Hygiene for a Healthier Bathroom:  In-wall cisterns not only look great, but they also promote better hygiene in your bathroom. The traditional exposed cistern can be a breeding ground for dust and bacteria, especially behind the toilet where cleaning can be difficult.  By concealing the cistern within the wall cavity, in-wall systems eliminate these hard-to-reach areas, making it much easier to maintain a clean and hygienic bathroom environment.


4. Quieter Operation for a Peaceful Bathroom Experience:  Traditional toilets can be quite noisy during flushing, especially older models.  In-wall cisterns offer a significant advantage in this regard.  Since the cistern is housed within the wall cavity, much of the flushing noise is muffled. This translates to a quieter and more peaceful bathroom experience for everyone in your household.


5. Accessibility Features for Enhanced Usability:  In-wall cisterns offer a surprising benefit for individuals with limited mobility.  The flush plate, which activates the flushing mechanism, can be strategically positioned on the wall at a comfortable height for easier access.  This eliminates the need to reach down or bend awkwardly to flush the toilet, providing greater independence and convenience for those who require it.


6. Potential Increase in Resale Value:  When it comes to selling your home, a modern and well-maintained bathroom can be a major selling point.  In-wall cistern systems, with their sleek design and functionality, are often viewed as a desirable feature by potential buyers.  This can potentially translate into a higher resale value for your property.


It's important to note that the cost of in-wall cisterns is generally higher than traditional toilets.  This includes the cost of the unit itself, the installation labor, and any potential modifications required to your existing plumbing.  However, the long-term benefits in terms of aesthetics, functionality, and potential resale value can make in-wall cisterns a worthwhile investment for many homeowners.


Considerations Before Choosing an In-Wall Cistern 

While in-wall cisterns offer a plethora of advantages, there are some important factors to consider before making the switch from a traditional toilet system.


1. Cost: As mentioned earlier, in-wall cisterns involve a higher initial investment compared to traditional toilets.  This cost breakdown includes:


  • The in-wall cistern unit itself: Prices can vary depending on the brand, features, and flushing technology.

  • Installation labor: Professional installation by a qualified plumber is crucial for proper functioning and to ensure warranty coverage.

  • Potential plumbing modifications: Depending on your existing bathroom layout, you may need additional plumbing work to accommodate the in-wall cistern system.

While the upfront cost might seem higher, consider the potential long-term benefits.  In-wall cisterns are generally built to last and can add value to your property.


2. Space Requirements:  In-wall cisterns require sufficient space within the wall cavity for proper installation.  Here's what to consider:


  • Wall cavity depth: The frame holding the cistern needs a specific depth within the wall. Consult your chosen in-wall cistern model's specifications for the required depth.

  • Stud placement: The metal studs within the wall cavity need to be strategically positioned to provide a secure mounting base for the cistern frame.

It's crucial to have your bathroom walls assessed by a qualified plumber to ensure they meet the space requirements for a successful in-wall cistern installation.


3. Maintenance and Repair:  Since the cistern is concealed within the wall, access for maintenance or repairs might be slightly more complex compared to traditional toilets. However, high-quality in-wall cisterns are designed for easy access through a service panel typically located behind the flush plate.


Choosing a reputable brand with readily available replacement parts is essential for long-term maintainability.


4. Water Efficiency:  Water conservation is a growing concern for many homeowners.  The good news is that many in-wall cistern models offer dual-flush mechanisms.  These allow you to choose between a full flush for solid waste and a partial flush for liquid waste, promoting water conservation in your bathroom.


5. Matching Toilet Bowl:  It's important to select a toilet bowl specifically designed for compatibility with in-wall cisterns.  These bowls typically have a different outlet configuration compared to traditional toilets and are engineered to work seamlessly with the in-wall cistern's flushing mechanism.


By carefully considering these factors and consulting with a qualified plumber, you can make an informed decision about whether an in-wall cistern system is the perfect fit for your bathroom renovation or new build project.


Installation Process for In-Wall Cisterns 

Disclaimer: While this section provides a general overview of the in-wall cistern installation process, it's highly recommended to consult with a qualified plumber for the actual installation. They possess the necessary expertise, tools, and experience to ensure a safe, efficient, and code-compliant installation.


Here's a simplified breakdown of the typical stages involved in installing an in-wall cistern system:


1. Rough-in Stage: This initial phase involves preparing the wall cavity for the cistern frame. Your plumber will:

  • Mark the designated location for the cistern and flush plate on the wall.

  • Cut and frame the wall cavity to accommodate the cistern frame's depth and dimensions.

  • Install the plumbing rough-ins, including water supply lines and waste pipes, according to local building codes.

  • Waterproof the area around the rough-in plumbing to prevent future leaks.

2. Cistern Frame Installation: Once the rough-in is complete, the plumber will:

  • Securely mount the in-wall cistern frame within the prepared cavity, ensuring proper alignment and leveling.

  • Connect the water supply line and waste pipe to the designated connections on the cistern frame.

  • Double-check all connections for leaks and ensure the cistern fills and flushes properly.

3. Toilet Bowl and Flush Plate Mounting: After verifying the cistern's functionality, the plumber will:

  • Install the chosen toilet bowl onto the mounting points provided on the cistern frame.

  • Connect the toilet bowl to the waste pipe outlet.

  • Attach the flush plate to the designated location on the wall and connect it to the flushing mechanism within the cistern.

4. Final Checks and Testing: The final stage involves a thorough inspection and testing of the entire system:

  • The plumber will perform a final leak test on all water connections.

  • They will activate the flush plate multiple times to ensure proper flushing and water refilling of the cistern.

  • Any minor adjustments will be made if necessary for optimal performance.


Popular In-Wall Cistern Brands

When choosing an in-wall cistern system, opting for a reputable brand ensures quality, reliability, and long-term satisfaction. Here are some of the leading brands known for their high-performing in-wall cistern offerings:


  • Grohe: Renowned for their innovative technology and sleek designs, Grohe offers a variety of in-wall cistern models catering to diverse needs and budgets.

  • Geberit: A pioneer in the sanitaryware industry, Geberit boasts a wide range of in-wall cistern systems known for their durability, water efficiency, and user-friendly features.

  • Toto: A trusted name in bathroom fixtures, Toto in-wall cisterns are synonymous with exceptional quality and cutting-edge flushing technology.

  • Kohler: Offering a blend of style and functionality, Kohler in-wall cisterns cater to both modern and traditional bathroom aesthetics.

  • Duravit: Renowned for their commitment to design and innovation, Duravit in-wall cisterns provide a perfect balance of aesthetics, functionality, and user comfort.

Remember, this is not an exhaustive list, and numerous other brands offer high-quality in-wall cistern systems. Researching specific features, warranty options, and customer reviews of different brands will help you select the perfect solution for your bathroom project.


By considering your budget, desired functionality, and preferred design aesthetic, you can find the ideal in-wall cistern brand to elevate your bathroom space.


Conclusion

In-wall cistern toilets have revolutionized bathroom design by offering a unique combination of aesthetics, functionality, and space optimization. This comprehensive guide has equipped you with the knowledge you need to make an informed decision about incorporating an in-wall cistern system into your bathroom renovation or new build.

From understanding the different types and their benefits to considering space requirements and installation processes, you've gained valuable insights to navigate the world of in-wall cisterns.


Remember, the key considerations before choosing an in-wall cistern include cost, space availability, maintenance needs, water efficiency, and selecting a compatible toilet bowl.  Most importantly, consulting with a qualified plumber is crucial for ensuring a safe and code-compliant installation. 


For flawless in-wall cistern installation and exceptional plumbing services,  CPE Industries is your trusted partner. 


Whether you're seeking a sleek and modern bathroom makeover or simply aiming to maximize space in a smaller bathroom, in-wall cisterns offer a compelling solution.  By carefully considering the factors outlined in this guide and seeking professional guidance, you can transform your bathroom into a stylish and functional haven.


FAQs on In-Wall Cisterns

1. Are in-wall cisterns more expensive than traditional toilets?

Yes, in-wall cisterns typically have a higher upfront cost due to the unit, installation, and potential plumbing modifications.

2. Do in-wall cisterns save water?

3. Are in-wall cisterns difficult to maintain?

4. Can in-wall cisterns be installed in any bathroom?

5. Who should install an in-wall cistern?


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