Easy Kohler Toilet Install: Save Money, DIY Guide!

15 minutes on read

Considering a kohler one piece toilet installation? Many homeowners choose to tackle this project themselves to save on professional plumbing costs. The popular Kohler Cimarron model often features in DIY installations due to its ease of setup and efficient dual flush system. Correctly using plumber's putty during installation ensures a watertight seal, preventing future leaks and costly repairs. By following a step-by-step guide, even those new to home improvement can achieve a professional-quality kohler one piece toilet installation.

Is your bathroom looking a little dated? Are you tired of spending hours scrubbing around the nooks and crannies of your old toilet? If so, you've come to the right place.

Embarking on a DIY bathroom upgrade can feel daunting, but replacing your toilet is one of the most impactful changes you can make.

And with this comprehensive guide, it can be easier than you think.

Why Choose Kohler?

Kohler has long been synonymous with quality and innovation in the plumbing industry. Their reputation is built on decades of crafting reliable, stylish, and high-performing products.

When you choose Kohler, you're investing in a brand known for its durability and commitment to customer satisfaction. This translates to a long-lasting and reliable addition to your home.

The Allure of the One-Piece Toilet

One-piece toilets offer a sleek and modern aesthetic, instantly upgrading the look of any bathroom. But the benefits extend beyond mere aesthetics.

Their seamless design eliminates the gaps and crevices found in two-piece models, making them significantly easier to clean and maintain.

This also minimizes the risk of dirt and grime buildup. Essentially, you get a cleaner, more hygienic bathroom with less effort.

DIY: Saving Money and Gaining Satisfaction

Hiring a professional plumber can quickly add up, especially for a relatively straightforward job like toilet replacement. By tackling this project yourself, you can save a significant amount of money on labor costs.

Furthermore, there's a unique sense of accomplishment that comes from completing a home improvement project.

The satisfaction of knowing you upgraded your bathroom with your own two hands is truly rewarding.

A Step-by-Step Guide for Homeowners

This guide is designed to be your comprehensive resource for installing a Kohler one-piece toilet.

We'll walk you through each step of the process, from gathering the necessary tools and materials to connecting the water supply and ensuring a leak-free installation.

No prior plumbing experience is required. We aim to provide clear, concise instructions that are easy to follow, even for beginners.

Our goal is to empower you to confidently tackle this project and enjoy the benefits of a new, stylish, and efficient toilet. Let's get started!

Isolating the task to a simple toilet swap offers immediate returns in both aesthetics and your wallet. However, before you even think about unboxing that sleek new Kohler, a little prep work goes a long way.

Preparation is Key: Gathering Tools and Assessing Your Space

Proper preparation is the unsung hero of any DIY project. It ensures a smooth installation process, prevents frustrating delays, and ultimately, leads to a successful outcome.

This phase involves two critical aspects: gathering the necessary tools and materials, and thoroughly assessing your bathroom space. Overlooking either of these can lead to unnecessary trips to the hardware store or, worse, discovering compatibility issues mid-installation.

Tools and Materials You'll Need: Your DIY Arsenal

Having the right tools at your disposal is paramount. This not only makes the job easier but also ensures you can complete each step safely and effectively. Here's a comprehensive list of what you'll need:

  • Kohler One-Piece Toilet: This is the star of the show! Ensure you've chosen a model that fits your bathroom's rough-in measurement (more on that later).

  • New Wax Ring: Crucial for creating a watertight seal between the toilet and the flange. Don't reuse the old one!

  • Toilet Bolts: These secure the toilet to the flange. New bolts ensure a snug and reliable fit.

  • Supply Line: The flexible hose that connects the toilet to the water supply. If your existing supply line is old or shows signs of wear, it's wise to replace it.

  • Shut-Off Valve: This controls the water supply to the toilet. Check its functionality. If it's corroded or difficult to turn, consider replacing it to avoid future headaches.

  • Wrench (Adjustable or Pipe Wrench): Essential for tightening bolts and connecting the supply line. An adjustable wrench offers versatility.

  • Level: This ensures the toilet is sitting level, preventing wobbling and potential leaks.

  • Measuring Tape: Accurate measurements are key, especially for determining the rough-in distance.

  • Caulk (Optional): Applying caulk around the base of the toilet creates a finished look and helps prevent water from seeping underneath. Choose a mildew-resistant caulk.

Understanding Your Space: The Foundation for Success

Before you even think about touching your old toilet, take the time to understand your bathroom's plumbing setup. This involves three key steps: measuring the rough-in, inspecting the flange, and checking the shut-off valve.

Measuring the Rough-In

The rough-in measurement is the distance from the wall behind the toilet to the center of the toilet's drainpipe (the flange). This measurement determines the size of toilet that will fit in your bathroom.

Most toilets come in standard rough-in sizes (typically 10, 12, or 14 inches). Measuring accurately ensures your new Kohler toilet will fit correctly.

To measure, simply run a measuring tape from the wall (or baseboard, if present) to the center of the bolts that secure the toilet to the floor.

Inspecting the Flange

The flange is the metal or plastic ring that connects the toilet to the drainpipe. It's a critical component for a watertight seal.

Carefully inspect the flange for any signs of damage, such as cracks, rust, or corrosion. A damaged flange can compromise the seal and lead to leaks. If the flange is damaged, it may need to be repaired or replaced before installing the new toilet.

Checking the Shut-Off Valve

Locate the shut-off valve that controls the water supply to the toilet. This is usually located on the wall behind the toilet. Test the valve to ensure it shuts off the water flow completely.

If the valve is difficult to turn, corroded, or leaking, it's best to replace it before you begin the installation. A faulty shut-off valve can make the entire process much more difficult and messy.

It’s quite surprising how many homeowners shy away from this particular task. While swapping out a toilet might seem intimidating, armed with the right tools and a bit of patience, it’s entirely manageable. Plus, there’s a certain satisfaction in knowing you’ve tackled this project yourself, saving money and gaining a valuable skill in the process.

Removing the Old Toilet: A Step-by-Step Guide

Before we can bask in the glory of that sparkling new Kohler, we’ve got to bid farewell to the old throne. This step, while potentially a little messy, is crucial. A careful and methodical approach here sets the stage for a smooth installation.

Step 1: Shutting Off the Water Supply – The Golden Rule

This is non-negotiable. Always shut off the water supply before attempting any plumbing work. Trust us; a flooded bathroom is a far greater headache than spending an extra minute locating the shut-off valve.

Most toilets have a dedicated shut-off valve located on the wall behind the toilet. Turn the valve clockwise until it’s completely closed.

To double-check, flush the toilet. If the water level doesn’t refill, you’ve successfully cut off the supply. If it does refill, the valve might be faulty and require replacement (or a call to a plumber if you're not comfortable with that).

Step 2: Disconnecting the Supply Line

With the water supply safely cut off, it's time to disconnect the supply line. Place a bucket or towels beneath the connection to catch any residual water.

Using a wrench, carefully loosen the connection where the supply line attaches to the toilet's fill valve. Be prepared for a small amount of water to spill out.

Once disconnected from the toilet, also disconnect the supply line from the shut-off valve itself.

Inspect the supply line. If it shows any signs of wear, cracks, or corrosion, now is the perfect time to replace it with a new one. A fresh supply line ensures a reliable connection and prevents future leaks.

Step 3: Removing the Old Toilet Bolts and Lifting the Toilet

This can often be the most challenging part, especially if the bolts are corroded or rusted. Start by removing the bolt caps (if present) covering the bolts at the base of the toilet.

Spray a penetrating oil (like WD-40) onto the bolts and let it sit for a few minutes to help loosen them.

Using a wrench, try to loosen the nuts securing the toilet to the floor. If they're severely rusted, you might need to use a hacksaw or a specialized bolt cutter to cut through them. Be careful not to damage the flange itself.

With the bolts removed, it’s time to lift the toilet. Gently rock the toilet back and forth to break the seal of the old wax ring.

Have a helper assist you if possible, as toilets can be surprisingly heavy. Lift the toilet straight up and off the flange. Be prepared for some residual water to spill out.

Carefully carry the old toilet outside or to a designated disposal area. Consider contacting your local waste management company for proper disposal guidelines.

Step 4: Scraping the Old Wax Ring and Cleaning the Flange

With the old toilet gone, you’ll be greeted by the old wax ring – a sticky, often unpleasant sight.

Using a putty knife or a similar tool, carefully scrape away all traces of the old wax ring from the flange and the surrounding area. Ensure you remove every last bit of the old wax.

Inspect the flange itself. Is it cracked, damaged, or severely corroded? If so, it must be replaced before installing the new toilet. A damaged flange will prevent a proper seal and lead to leaks. Depending on the extent of the damage and your DIY skills, this might be a job best left to a professional plumber.

Once the flange is clean and inspected, you’re ready to move on to the exciting part: installing your brand new Kohler one-piece toilet!

It’s quite surprising how many homeowners shy away from this particular task. While swapping out a toilet might seem intimidating, armed with the right tools and a bit of patience, it’s entirely manageable. Plus, there’s a certain satisfaction in knowing you’ve tackled this project yourself, saving money and gaining a valuable skill in the process.

Installing Your New Kohler One-Piece Toilet: A Detailed Walkthrough

Before we can bask in the glory of that sparkling new Kohler, we’ve got to bid farewell to the old throne. This step, while potentially a little messy, is crucial. A careful and methodical approach here sets the stage for a smooth installation of your new toilet.

Now, with the old toilet gone and the area prepped, it’s time for the grand finale: installing your new Kohler one-piece toilet. This is where your patience and preparation will truly pay off. Let's get started.

Step 1: Wax Ring Placement – The Foundation of a Leak-Proof Seal

The wax ring is the unsung hero of toilet installation, creating a watertight seal between the toilet and the flange. A faulty wax ring can lead to leaks, so this step is crucial.

Carefully remove the new wax ring from its packaging.

There are two primary ways to place the wax ring: either on the flange itself or on the bottom of the toilet. Most professionals prefer placing it directly onto the flange as it often provides better stability during the initial positioning of the toilet.

Ensure the ring is centered and firmly seated.

Pro Tip: Some wax rings come with a plastic horn. This horn should point downward into the drainpipe.

Step 2: Positioning the Toilet – A Delicate Dance

This step requires finesse. The goal is to carefully lower the toilet onto the flange without disturbing the wax ring.

Ensure the toilet is aligned correctly with the bolt holes before you begin to lower it.

Gently lower the Kohler one-piece toilet straight down onto the flange, ensuring the bolt holes align. Avoid twisting or rocking the toilet, as this can compromise the wax seal.

Apply even pressure as you set the toilet in place. You should feel the toilet compress the wax ring.

Step 3: Securing the Toilet – Hand-Tightening the Bolts

With the toilet now sitting on the wax ring and flange, it's time to secure it with the toilet bolts.

Insert the new toilet bolts through the washers and then through the holes on either side of the toilet base.

Begin by hand-tightening the bolts. This ensures that the toilet is evenly seated before you apply more pressure with a wrench.

Step 4: Tightening the Bolts – The Art of "Just Right"

This is where the "less is more" principle applies. Overtightening the bolts can crack the porcelain base of the toilet.

Using a wrench, alternately tighten the bolts in small increments. This ensures even pressure and prevents the toilet from rocking.

Regularly check the toilet's stability as you tighten.

Stop tightening when the toilet is firmly seated and doesn't wobble. A slight compression of the wax ring is all you need.

Step 5: Connecting the Supply Line – Water Works

Now, it's time to reconnect the water supply.

Attach the supply line to the toilet's fill valve. Ensure the connection is snug but not overly tight.

Consider using Teflon tape on the threads for a better seal.

Step 6: Testing for Leaks – A Moment of Truth

Slowly turn the water back on at the shut-off valve. Keep a close eye on all connections for any signs of leaks.

Check the supply line connection, the base of the toilet where it meets the floor, and around the tank.

If you spot any leaks, immediately turn off the water and tighten the connections further. If the leaks persist, you might need to replace the supply line or wax ring.

Step 7: Leveling the Toilet – Achieving Perfect Balance

A level toilet is a comfortable toilet.

Place a level on the toilet bowl to check if it's sitting evenly.

If the toilet is not level, use shims (small plastic wedges) under the base to correct any imbalances.

Once the toilet is level, you can score the shims with a utility knife and snap off the excess.

Caulking around the base of the toilet is an optional step, but it’s highly recommended.

It provides a clean, finished look and prevents water or debris from getting trapped under the toilet.

Apply a bead of caulk around the base of the toilet, leaving a small gap at the back to allow for any future leaks to be detected.

Smooth the caulk with your finger or a caulking tool for a professional finish.

Final Steps and Considerations: Ensuring a Perfect Installation

With your new Kohler one-piece toilet securely in place, the finish line is in sight. But before you declare victory and add this accomplishment to your DIY resume, a few crucial steps remain. These final checks and balances will ensure your installation is not only functional but also leak-free and long-lasting.

Attaching the Toilet Seat

Often, new toilets come with a pre-installed seat, which is a definite time-saver. However, if yours didn't, now is the time to attach it.

Most toilet seats attach using bolts and nuts that secure through the holes on the top of the toilet bowl. Ensure the seat is aligned properly before fully tightening the bolts.

A wobbly or misaligned seat is a constant source of frustration, so take the time to get it right. Consult your toilet seat's instructions if needed.

The Moment of Truth: Flushing and Testing

This is the most anticipated step: the initial flush! Slowly turn the water supply valve counterclockwise to fully open it.

Watch carefully for any leaks around the supply line connection or the base of the toilet. If all looks good, flush the toilet.

Observe the flushing action – is it powerful and complete?

Flush several more times to ensure everything is working correctly and that there are no hidden leaks.

Pay close attention to the seal around the base of the toilet after each flush. This is where leaks are most likely to appear.

Cleaning Up and Responsible Disposal

With the new toilet installed and functioning properly, it's time to clean up your workspace.

Gather any tools, rags, and debris. Dispose of the old wax ring and any other discarded materials responsibly.

Consider taking the old toilet to a recycling center if possible. Many centers accept porcelain fixtures.

Leaving a clean and tidy bathroom is the perfect way to cap off your successful DIY project.

When to Call a Plumber: Recognizing Your Limits

While installing a toilet is a manageable DIY project for many homeowners, there are situations where calling a licensed plumber is the best course of action.

Knowing when to call in a professional can save you time, money, and a lot of potential headaches.

Here are some scenarios that warrant professional help:

  • Damaged Flange: If the flange is cracked, corroded, or otherwise damaged, it needs to be repaired or replaced. This can be a complex task that requires specialized tools and knowledge.

  • Complex Plumbing Issues: If you encounter any unexpected plumbing problems, such as a leaking supply line or a blocked drain, it's best to call a plumber. Trying to fix these issues yourself could make the problem worse.

  • Persistent Leaks: If you've tried everything and you're still experiencing leaks around the toilet, it's time to call a plumber. A persistent leak can cause significant water damage and should be addressed promptly.

  • Unsure or Uncomfortable: If you feel unsure or uncomfortable at any point during the installation process, don't hesitate to call a plumber. It's better to be safe than sorry.

By carefully following these final steps and knowing when to seek professional help, you can ensure a perfect toilet installation that will provide years of reliable service.

FAQ: Kohler Toilet Installation

Still have questions after reading the guide? Here are some common inquiries to help you with your Kohler toilet installation.

How much money can I really save by installing a Kohler toilet myself?

The savings depend on your plumber's hourly rate, but professional installation can easily cost $150-$300 or more. By tackling it yourself, you avoid those labor costs, putting that money back in your pocket. Plus, knowing you did it yourself is rewarding!

Is Kohler one piece toilet installation more difficult than installing a two-piece toilet?

Generally, no. Kohler one piece toilets are often easier to install because they eliminate the need to connect the tank to the bowl. This reduces the chance of leaks and simplifies the overall process. Just ensure you can safely lift the heavier single unit.

What tools are absolutely essential for a Kohler toilet installation?

You'll definitely need an adjustable wrench, a wax ring, a toilet supply line, a level, and perhaps a putty knife for removing the old toilet. Safety glasses and gloves are also recommended for protection. Having a small bucket and sponge is helpful too, for cleaning up any water spills.

What should I do with my old toilet after I remove it?

Many municipalities offer recycling programs for old toilets. Check with your local waste management service for options. You may also be able to donate it if it's still in usable condition. Avoid simply throwing it in the trash if possible.

So, ready to give that kohler one piece toilet installation a shot? With a little patience and the right tools, you've got this! Let us know how it goes in the comments!