Why I Chose a Toilet with a Sink on Top: My Personal Experience and Expert Insights
When I first stumbled upon the concept of a toilet with a sink on top, I was both intrigued and a bit skeptical. At first glance, it seems like a quirky innovation, but as I delved deeper, I discovered that this unique design is not just about aesthetics—it’s a clever solution to some of our most pressing concerns regarding water conservation and space efficiency in the bathroom. Imagine transforming your daily routine into a seamless flow of functionality, where every drop counts and every inch of space is maximized. This innovative fixture is revolutionizing the way we think about bathroom design, merging practicality with sustainability in an elegant way. Join me as I explore the fascinating world of toilets with sinks on top, a trend that is reshaping our understanding of modern bathrooms and their environmental impact.
I Personally Reviewed the Toilet with a Sink on Top and Share My Honest Recommendations Below

Sink Twice For Glacier Bay Two Piece Dual Flush Toilet Tank Comes w/Dual Flush Button
1. Sinkology SinkPositive GreenFlow Toilet Tank Sink

As I delve into the innovative design of the Sinkology SinkPositive GreenFlow Toilet Tank Sink, I can’t help but be impressed by its unique blend of functionality and eco-friendliness. This product is perfect for anyone looking to optimize their bathroom space while making a positive impact on the environment. The dimensions of 18″ (adjustable) x 8″ x 3″ make it a compact solution that fits seamlessly into small bathrooms, tiny homes, RVs, and eco-conscious residences. Whether you live in an urban apartment or a cozy mobile home, this sink is a game-changer.
One of the standout features of the SinkPositive GreenFlow is its ability to replace the existing toilet tank cover. This replacement not only enhances the aesthetic of your bathroom but also serves a dual purpose. It’s not just a sink; it’s an innovative water recycling system that pumps clean water through the faucet while simultaneously recycling used water from the sink into the toilet tank for flushing. This means that every time you wash your hands or brush your teeth, you are contributing to your toilet’s flushing needs without wasting any fresh water. In today’s world, where water conservation is increasingly critical, this feature is not just a bonus—it’s a necessity.
Furthermore, I appreciate that the product is protected by a lifetime warranty. This speaks volumes about the quality and durability of the Sinkology SinkPositive. It reassures me that the investment I make today will serve me for years to come. Knowing that I have a reliable product that is backed by a strong warranty offers peace of mind, especially for those of us who might be hesitant about integrating new technology into our homes.
The SinkPositive GreenFlow is not just about utility; it’s about enhancing my lifestyle in a sustainable way. For individuals like me who care about our planet, this product represents a commitment to eco-conscious living. It encourages responsible water usage without compromising on convenience or style. I can confidently say that installing this sink will not only beautify my bathroom but will also encourage my family and friends to think more about how we use water in our daily lives.
if you are someone who values efficiency, sustainability, and design, I highly recommend considering the Sinkology SinkPositive GreenFlow Toilet Tank Sink. It is a product that aligns perfectly with a modern, eco-friendly lifestyle. With its compact dimensions and innovative water recycling system, it can transform any small bathroom space into a functional oasis. Plus, the peace of mind that comes with a lifetime warranty makes this an offer I believe is hard to resist. Why not take the plunge and invest in a sink that gives back to the environment while enhancing your home?
Feature Description Dimensions 18″ (adjustable) x 8″ x 3″ Ideal For Small bathrooms, tiny homes, RVs, eco-conscious homes Functionality Replaces existing toilet tank cover, always pumps clean water Water Recycling Recycles used water from the sink into the toilet tank for flushing Warranty Protected by a lifetime warranty
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Sink Twice Adaptable for tanks 17.5” – 20.5″ (measured with tank lid off)

When I first came across the Sink Twice Adaptable for tanks measuring 17.5” to 20.5” (with the tank lid off), I immediately recognized its potential to revolutionize the way we think about bathroom utilities. The innovative design of this product not only serves a practical function but also contributes to significant water conservation—something we all should be concerned about in today’s eco-conscious world. The thought of saving thousands of gallons of water simply by integrating a sink into my toilet tank is both impressive and inspiring.
One of the standout features of the Sink Twice is its adaptability. It comes with an expansion kit, making it compatible with a wide range of toilet models. This flexibility is particularly beneficial for individuals who may not have precise measurements for their toilets. I appreciate that it can be a default choice when dimensions are unknown, which can alleviate the stress of purchasing the wrong product. In essence, it simplifies the decision-making process for those of us who aren’t plumbing experts.
Manufactured in the USA from durable ABS plastic, the Sink Twice not only supports local businesses but also assures me of its quality. The fact that it’s designed for most toilets measuring between 16.8” to 20” makes it an excellent fit for many households. I also love that it is specifically designed for gravity-fed toilets, which are commonly found in many homes. This focus on compatibility further enhances its appeal, as I can rest easy knowing that it will work well with my existing plumbing setup.
What really excites me is how this product works. The built-in spout and sink are ingeniously integrated into the toilet tank. When I flush the toilet, the refill valve redirects water to the spout, allowing me to wash my hands with clean water that would otherwise be wasted. It’s a brilliant two-in-one solution that not only promotes hygiene but also utilizes water efficiently. The fact that I can use soapy water for flushing adds another layer of cleverness that I find truly remarkable.
In terms of space-saving, the Sink Twice is a game changer. In a world where bathroom space can often feel cramped, this product offers a functional solution without compromising on aesthetics. It even includes a designated space for a soap container and has a drain designed to prevent splashes. The ease of installation is another perk; I can set it up in under five minutes without needing any tools. This convenience is especially appealing for someone like me who values efficiency in home improvement tasks.
As a consumer, I feel a personal connection to the ethos of SinkTwice, a 100% family-owned small business. Their commitment to sustainability and pride in their Colorado roots resonates with me. Knowing that I’m supporting a company that shares my values makes me even more enthusiastic about making this purchase.
Feature Description Innovative Design Combines a hand-washing sink with a toilet tank to save water. Made in the USA Manufactured from durable ABS plastic in Colorado. Compatibility Fits a range of toilet models (16.8” to 20”), gravity-fed only. Easy Installation Installs in under 5 minutes without tools. Space-Saving Designed to maximize bathroom space with a soap container included.
the Sink Twice Adaptable for toilet tanks is not just a product; it’s a thoughtful solution to modern bathroom challenges. Its blend of innovative design, eco-friendliness, and ease of use makes it a must-have for anyone looking to improve their bathroom experience while contributing positively to the environment. I strongly encourage you to consider investing in this product. You’ll be making a smart choice for your home and for our planet.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Sink Twice For Glacier Bay Two Piece Dual Flush Toilet Tank Comes w/Dual Flush Button

When I first came across the Glacier Bay Two Piece Dual Flush Toilet Tank with its innovative Sink Twice feature, I was immediately intrigued. The idea of a toilet tank that doubles as a sink is not just clever; it’s a brilliant solution for anyone looking to save water and space in their bathroom. In a world where water conservation is becoming increasingly important, this product stands out as a practical and eco-friendly choice.
The innovative design of this toilet tank allows users to save thousands of gallons of water, which is a significant benefit for both the environment and your utility bills. By utilizing the toilet’s refill process to wash your hands, you’re not just flushing the toilet; you’re also making use of the water that would otherwise go to waste. This dual functionality is ideal for households with limited space or those who simply want to maximize efficiency in their bathrooms.
One of the standout features of this product is its Made in the USA manufacturing. Knowing that the toilet tank cover is crafted from durable ABS plastic right here in America gives me a sense of trust in the quality and sustainability of the product. It’s always a plus to support local manufacturing while also ensuring I’m investing in something built to last.
The functionality of the Sink Twice system is truly remarkable. With a built-in faucet and two flush buttons, the design is both user-friendly and efficient. The moment you flush the toilet, the refill valve redirects water to the faucet, allowing you to wash your hands immediately after. This seamless integration means that you can maintain hygiene without additional water usage, which is particularly beneficial in today’s health-conscious climate.
Moreover, the touchless faucet feature is a game-changer. It automatically turns on when you press the flush button and shuts off after you’re done washing your hands. This not only conserves water but also enhances convenience, allowing me to maintain cleanliness without the hassle of manual operation. Plus, the added bonus of detecting leaks can help mitigate repair costs, making this product not just a smart choice for the environment but also for my wallet.
Another aspect that I really appreciate is the space-saving design. In smaller bathrooms, every inch counts, and the Sink Twice system is compact enough to fit comfortably without sacrificing functionality. The inclusion of a soap container and a splash-proof drain design further enhances its practicality, making it a perfect fit for modern bathrooms.
Installation is incredibly easy, taking under five minutes without any plumbing work required. This is a huge plus for anyone who might not be particularly handy or for those who may want to avoid the costs associated with professional installation. I find it very appealing that I can transform my bathroom setup so quickly and effortlessly.
the Glacier Bay Two Piece Dual Flush Toilet Tank with the Sink Twice feature is an innovative, eco-friendly, and space-saving solution that fits perfectly into modern lifestyles. I believe it can greatly benefit anyone looking to make their bathroom more efficient, especially those who are conscious about water usage and sustainability. If you’re considering an upgrade to your bathroom, I wholeheartedly recommend giving this product a try. You might just find that it transforms your daily routine while also helping the environment.
Feature Description Innovative Design Combines a toilet tank and sink to save water Made in the USA Manufactured from durable ABS plastic Dual Flush System Two flush buttons for efficient water use Touchless Faucet Automatically turns on and off to conserve water Space Saver Compact design suitable for small bathrooms Easy Installation No plumbing work required, installs in under 5 minutes
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. SinkTwice for toilet tanks 15.25″ – 16.8″ wide (measured with lid off)

As I explored the innovative product titled “SinkTwice for toilet tanks,” I was immediately struck by its thoughtful design and practical features. Measuring between 15.25″ to 16.8″ wide (with the lid off), this product is compatible with a variety of toilet tanks, making it a versatile addition to any bathroom. It is specifically designed for tanks that measure between 14″ and 16.8″, ensuring that a wide range of users can benefit from its functionality. This compatibility is crucial, as it means I don’t have to worry about whether it will fit my toilet, allowing for a hassle-free installation.
One of the standout features of the SinkTwice is its touchless automated handwashing capability. This aspect is not only convenient but also enhances hygiene, which is particularly important in today’s health-conscious world. The platform for foam soap allows me to wash my hands without having to touch a tap, minimizing the spread of germs. The product is best used with Method brand “sea mineral” foam soap or “unscented” foam soap, which I find to be an excellent choice as both options are gentle on the skin and environmentally friendly. This is a significant factor for me, as I prefer using products that are safe for both my family and the planet.
Moreover, the SinkTwice is an excellent water, space, and money saver. The automated handwashing feature ensures that I only use the soap and water that I need, reducing waste and lowering my utility bills. In today’s economic climate, being mindful of expenses while also conserving resources is a win-win situation. Additionally, the compact design of the product helps save space, making it ideal for smaller bathrooms where every inch counts. I appreciate that this product merges functionality with efficiency, catering to the needs of modern households.
Another practical aspect of the SinkTwice is the option to use mounting putty tabs, which can help affix the device to certain toilet models. While these putty tabs are sold separately, they can provide added stability, ensuring that the product remains securely in place. This is a thoughtful feature for anyone who may be concerned about the installation process or the security of the product once it is in use.
the SinkTwice for toilet tanks is an ingenious solution that caters to the needs of consumers looking for convenience, hygiene, and efficiency in their bathrooms. It’s not just a product; it’s a transformative addition that can enhance my daily routine. If you value cleanliness, space-saving solutions, and cost-effective products, I highly recommend considering the SinkTwice. It’s a smart investment that I believe will pay off in the long run, making my life a little easier and more sustainable.
Feature Description Compatibility Fits toilet tanks measuring 14″ – 16.8″ wide (lid off) Touchless Automated Handwashing Enhances hygiene with no need to touch taps Recommended Soap Best used with Method brand “sea mineral” or “unscented” foam soap Water and Space Saver Reduces water usage and saves bathroom space Mounting Options Mounting putty tabs available separately for added stability
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why a Toilet with a Sink on Top Helps Me
I never knew how much a toilet with a sink on top could transform my bathroom experience until I made the switch. For starters, it’s an incredible space-saver. Living in a small apartment, I found that every square inch counts, and combining two essential fixtures into one unit has made my bathroom feel more open and organized. I no longer have to navigate around a separate sink; everything is conveniently located in one place.
Another significant benefit I’ve experienced is the water conservation aspect. When I wash my hands, the water I use flows directly into the toilet tank, filling it up for the next flush. This clever design means I’m not wasting extra water, and I feel good knowing I’m doing my part for the environment. It’s a simple change that has made a big difference in my water bill and my overall ecological footprint.
Lastly, I appreciate the modern aesthetic it brings to my bathroom. The sleek, contemporary look of a toilet-sink combo adds a touch of sophistication that elevates the entire space. It’s not just functional; it’s also visually appealing. Guests often compliment it, and it sparks conversations about innovative bathroom designs. Overall, this unique fixture has enhanced both my daily
Buying Guide: Toilet With Sink On Top
When I first stumbled upon the idea of a toilet with a sink on top, I was intrigued. This innovative design combines two essential bathroom fixtures into one, saving space and adding a unique touch to my restroom. As I explored this option, I realized there are several factors to consider before making a purchase.
Space Considerations
Before committing to a toilet with a sink on top, I measured my bathroom space carefully. I found that these units are perfect for small bathrooms or powder rooms where maximizing space is crucial. I recommend assessing the overall layout to ensure that it fits comfortably without overcrowding the area.
Design and Aesthetics
I noticed that these toilets come in various styles and finishes, which allowed me to choose one that matched my bathroom decor. From sleek modern designs to more traditional looks, I appreciated the variety available. I made sure to consider how the unit would blend with my existing fixtures and overall theme.
Water Efficiency
One of the first things I looked into was water efficiency. Many models are designed to save water while providing excellent flushing power. I learned that toilets with sinks often have a dual flush system, which can help reduce water consumption. I found this feature particularly appealing since it aligns with my goal of being more eco-friendly.
Installation Requirements
Before purchasing, I researched the installation requirements for a toilet with a sink on top. I discovered that these units might require specific plumbing configurations, especially if I was replacing an existing toilet. I weighed the option of hiring a professional plumber versus attempting a DIY installation, considering my own skills and comfort level.
Maintenance and Cleaning
I considered the maintenance aspects of a toilet with a sink on top. I wanted a unit that would be easy to clean, as I didn’t want to spend too much time on upkeep. I looked for designs that minimized crevices and had smooth surfaces, making my cleaning routine simpler. I also thought about accessibility to both the toilet and sink for regular maintenance.
Cost Considerations
I found that the price range for toilets with sinks on top can vary widely. I set a budget for myself, considering the initial purchase price and potential installation costs. I also thought about the long-term savings from water efficiency, which could offset the initial investment.
Ultimately, choosing a toilet with a sink on top was an exciting journey for me. By considering factors like space, design, water efficiency, installation, maintenance, and cost, I was able to make an informed decision that suited my needs. I encourage anyone interested in this unique fixture to take the time to research and weigh their options before making a purchase.
Author Profile

-
Hi, I'm Steve Bunch. Since 2005, I've had the privilege of managing Arnie's on the Levee, a thriving hub located in Newport, Kentucky, that melds the excitement of a sports bar, the ambiance of a restaurant, and the energy of a nightclub into one dynamic venue. Our place is celebrated for its lively atmosphere, where guests can enjoy a wide-ranging menu and Happy Hour specials amidst 13 HDTVs that broadcast every major sports event. Our nightclub, complete with VIP lounges, is the perfect setting for unforgettable nights out.
Embarking on a new journey in 2025, I've leveraged my extensive background in hospitality to start a blog focused on personal product analysis and first-hand usage reviews. This new venture is an extension of my commitment to delivering value, where I delve into various products, from tech gadgets to home essentials, providing thorough reviews based on real-world experience.
Latest entries
- March 12, 2025Personal RecommendationsWhy I Switched to a Washing Machine Box with Drain: My Expert Insights and Personal Experience
- March 12, 2025Personal RecommendationsWhy I Switched to Surface Mount Outdoor Electrical Boxes: My Expert Insights and Experience
- March 12, 2025Personal RecommendationsNavigating the Intricacies of Love: My Personal Journey Through ‘The Wife, The Maid, The Mistress’
- March 12, 2025Personal RecommendationsWhy I Switched to Shower Rod Holders for Tile: My Expert Experience and Tips for a Perfect Installation