A leaky shower diverter can be frustrating; therefore, understanding the purpose of a shower valve is crucial when you plan to replace shower diverter. This guide uses common household tools, such as a plumber’s wrench, making the process accessible. Moen, a leading fixture manufacturer, offers numerous replacement diverters. The goal is to provide a clear, step-by-step process to replace shower diverter, ensuring the repair minimizes water wastage. Thus, with proper preparation, anyone can confidently replace shower diverter.

Image taken from the YouTube channel StatUpBox , from the video titled How To Replace Install Diverter Push Button Shower Tub Easy Simple .
Reclaim Your Shower Experience with a New Diverter
Is your shower experience being ruined by a faulty diverter? Are you tired of water trickling from the shower head when you want a bath, or vice versa? A malfunctioning shower diverter can be incredibly frustrating, turning a relaxing ritual into an exercise in annoyance.
The good news is, you don’t have to live with a subpar shower! Replacing a shower diverter is often a manageable DIY project that can save you a significant amount of money compared to hiring a professional plumber.
The Essential Role of the Shower Diverter
The shower diverter is the unsung hero of your bathroom, responsible for directing water flow between the bathtub faucet and the shower head. It’s a simple mechanism with a crucial job: ensuring that water goes where you want it to go.
Think of it as a traffic controller for your water supply, seamlessly switching the flow depending on your bathing preference. Without a functioning diverter, you’re essentially stuck with either only a bath or only a shower.
Common Diverter Problems
Over time, shower diverters can succumb to wear and tear, leading to several common problems:
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Leaks: Water escaping from the faucet while the shower is running, or vice versa, is a telltale sign of a faulty diverter. This wastes water and can be incredibly irritating.
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Failure to Divert Water: The diverter might not fully engage, resulting in weak or nonexistent water flow to the desired outlet (shower head or faucet).
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Sticking or Difficulty Operating: The diverter handle might become difficult to pull, push, or turn, requiring excessive force.
These issues often stem from mineral buildup, corrosion, or worn-out internal components.
DIY vs. Hiring a Plumber: The Cost-Effective Choice
Calling a plumber for a minor repair like a shower diverter replacement can quickly add up. Labor costs, service fees, and the price of the replacement part can result in a hefty bill.
By tackling this project yourself, you can save a considerable amount of money. The cost of a new diverter valve and a few basic tools is often far less than the expense of professional plumbing services.
However, it’s important to assess your own comfort level and skills before embarking on this DIY endeavor.
Your Roadmap to a Seamless Shower
This guide provides a comprehensive, step-by-step approach to replacing your shower diverter:
- Understanding Your Shower Diverter: Learn about different types and common issues.
- Gathering Your Tools and Materials: Ensuring you have everything you need before you begin.
- Step-by-Step Guide: A detailed walkthrough of the replacement process.
- When to Call a Professional: Recognizing when DIY is not the best option.
- Maintaining Your New Shower Diverter: Tips for longevity and care.
- Conclusion: Celebrate your DIY triumph!
By following these steps, you can confidently reclaim your shower experience and enjoy a fully functional and leak-free bathroom.
Understanding Your Shower Diverter: Types, Function, and Common Issues
Before you grab your tools, it’s crucial to understand the anatomy of your shower diverter. Knowing its type, how it functions, and the common problems it faces will empower you to accurately diagnose the issue and select the correct replacement.
There are three primary types of shower diverters commonly found in residential bathrooms: the pull-up knob, the lever, and the push-button diverter. Each employs a slightly different mechanism to achieve the same goal: directing water either to the bathtub faucet or the showerhead.
Types of Shower Diverters
Pull-Up Knob
This classic design features a small knob, usually located on the bathtub faucet itself. When the water is running and the knob is in its resting position, water flows freely from the faucet. Pulling up on the knob engages the diverter, redirecting the water flow to the showerhead.
The internal mechanism typically involves a rubber or plastic seal that rises within the faucet body. This seal blocks the path to the faucet and opens the path to the showerhead.
Lever Diverter
Similar to the pull-up knob, the lever diverter is usually found on the bathtub faucet. However, instead of pulling up, you rotate a lever or handle to divert the water.
Internally, the lever rotates a valve, which then closes off the flow to the faucet and opens the path to the showerhead. Lever diverters often offer a more robust and durable mechanism compared to the pull-up knob.
Push-Button Diverter
This type is often located on the shower column itself, separate from the bathtub faucet. Pressing the button engages the diverter, sending water to the showerhead. Pressing it again, or sometimes the water pressure itself, will cause the button to disengage and allow the water to flow back to the tub faucet.
The internal mechanism relies on a spring-loaded valve that is either held open or closed by the button. Push-button diverters are especially common in showers without a bathtub.
How Each Type Redirects Water
Regardless of the type, the underlying principle is the same: a diverter physically blocks one water outlet while simultaneously opening another. This redirection is achieved through the movement of internal seals, valves, or plungers.
Understanding the specific mechanism of your diverter type can be helpful when troubleshooting issues.
Common Reasons for Diverter Failure
Shower diverters are constantly exposed to water, minerals, and pressure fluctuations, which can eventually lead to wear and tear.
Here are some common issues that might necessitate replacement:
Leaks
Leaks are the most common symptom of a failing diverter. Water dripping or flowing from the bathtub faucet while the shower is running indicates a problem with the seal inside the diverter. This often occurs when the seal becomes cracked, worn, or stiff over time.
Difficulty Diverting Water
If you find it difficult to pull up the knob, rotate the lever, or press the button, the diverter mechanism might be sticking or corroded. This can also manifest as weak water flow from the showerhead even when the diverter is fully engaged.
Worn-Out Parts
The internal components of a shower diverter, such as seals, springs, and valves, are subject to constant wear. Over time, these parts can degrade, leading to leaks, sticking, or complete failure of the diverter. Hard water also contributes to the quick decline of diverters due to mineral buildup.
By understanding the type of diverter you have, how it functions, and the common problems it can experience, you’ll be well-equipped to tackle the replacement process with confidence.
Gathering Your Tools and Materials: Preparation is Paramount
Now that you’re armed with the knowledge to identify your shower diverter and understand its potential problems, the next crucial step is gathering the necessary tools and materials. Proper preparation is the cornerstone of any successful DIY project, and replacing a shower diverter is no exception. Having everything readily available will not only streamline the process but also minimize frustration and potential setbacks.
Essential Tools for Diverter Replacement
This list contains the non-negotiable items you’ll need to have on hand before you begin.
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Wrenches (Various Sizes): You’ll need at least two adjustable wrenches or a set of open-end wrenches. Different diverters and plumbing configurations require different sizes. Having a variety ensures you’re prepared for any eventuality.
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Screwdrivers (Phillips and Flathead): Many diverters are held in place with screws. Having both Phillips and flathead screwdrivers is essential to tackle any type of screw you might encounter.
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Pliers: Pliers are useful for gripping, holding pipes steady, and even gently loosening stubborn parts. Needle-nose pliers can be particularly helpful in tight spaces.
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Teflon Tape (Plumber’s Tape): This indispensable tape creates a watertight seal on threaded connections. Applying Teflon tape properly is crucial to preventing leaks after the new diverter is installed.
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New Diverter Valve (Replacement Part): This is the most important material of all. You absolutely must have the correct replacement part before you begin. We will discuss how to do that, below.
Sourcing the Correct Replacement Diverter Valve
Matching the Existing Type
It cannot be overstated: your new diverter must be the same type as your old one. A pull-up knob diverter will not function correctly in a system designed for a lever diverter, and vice-versa. Carefully examine your existing diverter to determine its type before purchasing a replacement.
Identifying the Specific Model
Ideally, you should try to identify the exact model number of your existing diverter. This information is often found stamped on the diverter itself or in the manufacturer’s documentation (if you have it). If you can’t find the model number, take clear photos of your old diverter from multiple angles.
Where to Buy
- Online Retailers: Websites like Amazon, Home Depot, and Lowe’s offer a vast selection of shower diverters. Use the photos you took to compare and find an exact match, or cross-reference with the manufacturer’s website to verify compatibility.
- Hardware Stores: Local hardware stores are an excellent option, especially if you need help identifying the correct part. The staff can often assist you in finding a suitable replacement based on your description or photos.
- Plumbing Supply Stores: These stores specialize in plumbing supplies and typically carry a wider range of diverters, including less common or older models.
Optional but Recommended Tools
While not strictly essential, these tools can significantly enhance your safety and convenience.
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Safety Glasses: Protecting your eyes from debris is paramount. Always wear safety glasses when working on plumbing projects.
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Drain Stopper: This simple tool prevents screws or small parts from falling down the drain. Losing a screw down the drain can bring your project to a halt.
The Importance of Readiness
Having all the necessary tools readily available before you start will save you time, reduce frustration, and increase the likelihood of a successful diverter replacement. Take the time to gather these items and familiarize yourself with their use. It’s a small investment that pays off handsomely in a smoother, more efficient DIY experience.
Step-by-Step Guide: Replacing Your Shower Diverter Like a Pro
Now that you’re armed with the knowledge to identify your shower diverter and understand its potential problems, the next crucial step is gathering the necessary tools and materials. Proper preparation is the cornerstone of any successful DIY project, and replacing a shower diverter is no exception. Having everything readily available will not only streamline the process but also minimize frustration and potential setbacks. It cannot be overstated: taking the time to prepare thoroughly will make the entire replacement significantly smoother.
With your tools and new diverter valve assembled, you’re now ready to tackle the heart of the project: the replacement itself. Follow these steps carefully, and you’ll be enjoying a fully functional shower in no time.
Preparation is Key: Shutting Down and Protecting
Safety First! Before touching any plumbing, the most critical step is to turn off the water supply. Locate the main water shut-off valve for your house or, if available, the shut-off valve specifically for the shower. Turn it clockwise until the water flow is completely stopped.
Next, protect your bathtub and drain. Lay down an old towel or blanket in the tub to prevent scratches from dropped tools or the old diverter. Place a drain stopper in the drain to prevent small parts from disappearing down the pipe.
Finally, don’t forget your safety glasses. This is an essential precaution to protect your eyes from debris that may dislodge during the process.
Removing the Old Diverter: Disassembly Demystified
The removal process will vary slightly depending on the type of diverter you have (pull-up knob, lever, or push-button). However, the general principles remain the same.
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Locate and Loosen Screws: Examine the base of the diverter for any screws. These are often hidden under decorative caps that can be pried off gently with a flathead screwdriver. Use the appropriate screwdriver (Phillips or flathead) to loosen and remove the screws. Place the screws in a safe place.
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Wrenching It Loose: Once the screws are removed, use an appropriately sized wrench to grip the base of the old diverter valve. Apply steady pressure to loosen it. You may need to use a second wrench or pliers to hold the surrounding pipe steady to avoid damaging the plumbing. Be patient and avoid excessive force, as you don’t want to break the pipe.
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For Stubborn Diverters: If the diverter is stuck, try applying a penetrating oil (like WD-40) to the threads and let it sit for 15-20 minutes before attempting to loosen it again. Avoid applying heat, as this can damage the surrounding plumbing or create a fire hazard.
Specific Instructions by Diverter Type:
Pull-up Knob: These are usually the easiest to remove. After removing any screws, simply unscrew the entire assembly.
Lever: Similar to pull-up knobs, levers typically unscrew after removing any set screws.
Push-Button: Push-button diverters may require more disassembly, potentially involving removing the showerhead and surrounding trim to access the valve body.
Caution: Throughout this process, exercise extreme caution to avoid damaging the plumbing. If anything feels excessively difficult or you are unsure about a step, stop and consider consulting a professional plumber.
Preparing the New Diverter: Sealing the Deal
Before installing the new diverter, it’s crucial to prepare the threads to ensure a watertight seal. This is where Teflon tape (plumber’s tape) comes in.
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Clean the Threads: Inspect the threads on the pipe extending from the wall and on the new diverter. Remove any old Teflon tape or debris.
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Applying Teflon Tape: Wrap the threads of the new diverter valve with Teflon tape. Wrap the tape in a clockwise direction when facing the threads. This ensures that the tape tightens as you screw the diverter into place, rather than unraveling.
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Overlap and Tension: Overlap the tape slightly with each wrap, and apply enough tension to stretch the tape slightly. Usually, 2-3 wraps of Teflon tape is sufficient, but you can add more if you feel it’s necessary.
Installing the New Diverter: Fitting it Right
With the threads properly prepared, it’s time to install the new diverter valve.
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Align and Thread: Carefully align the new diverter with the pipe extending from the wall and begin threading it by hand.
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Wrench Tightening: Once you can’t tighten it further by hand, use a wrench to tighten the diverter. Apply firm, steady pressure, but avoid over-tightening. Over-tightening can damage the threads or the diverter valve itself.
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Alignment: Ensure that the new diverter is properly aligned. The handle should be in the correct orientation (e.g., facing upwards or downwards). You may need to slightly adjust the tightness to achieve the correct alignment.
Testing and Finishing Up: Waterworks and Checks
This is the moment of truth.
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Slowly Restore Water Supply: Gradually turn the water supply back on, either at the main valve or the shower shut-off valve.
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Check for Leaks: Carefully inspect around the new diverter and its connections for any leaks. If you see even a small drip, immediately turn off the water supply and tighten the connection further. You may also need to add more Teflon tape.
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Test Diverter Function: Once you’re confident there are no leaks, test the diverter by switching between shower and faucet modes. Make sure the water flows correctly and the diverter operates smoothly.
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Troubleshooting Leaks: If you encounter leaks despite tightening the connections and using Teflon tape, try these troubleshooting steps:
- Add more Teflon tape: Sometimes, a few extra wraps of Teflon tape are all that’s needed to seal a stubborn leak.
- Check for cross-threading: If the diverter felt difficult to thread, there may be cross-threading, damaging the threads. In this case, you might need to replace the pipe fitting extending from the wall.
- Call a plumber: If you’ve tried everything and still can’t stop the leak, it’s time to call a professional plumber. Continuing to force the issue could cause more damage.
When to Call a Professional: Knowing Your Limits
While replacing a shower diverter is a manageable DIY project for many, it’s crucial to recognize when the situation warrants professional assistance. Not every plumbing issue is suited for a DIY approach, and attempting repairs beyond your skill level can lead to more significant problems and expenses down the line. Knowing your limitations is a key part of responsible home maintenance.
Recognizing Complex Plumbing Issues
Sometimes, what appears to be a simple diverter problem is actually a symptom of a larger, more complex issue within your plumbing system.
If, upon inspection, you encounter any of the following, it’s best to call a plumber:
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Heavily Corroded Pipes: Extensive corrosion weakens the integrity of the pipes and attempting to loosen or tighten connections can cause them to break or leak. Disturbed, aged plumbing is often a recipe for disaster.
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Frozen Connections: If parts are stuck and you’re unable to budge them, forcing the issue can lead to broken pipes or damaged fixtures.
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Pre-existing Leaks: If there are existing leaks in the surrounding pipes, or evidence of prior repairs (such as excessive sealant), the problem may be more extensive than just the diverter.
The Confidence Factor: Evaluating Your DIY Experience
Honest self-assessment is crucial. It’s better to be safe than sorry when it comes to plumbing.
If you answer "no" to any of the following questions, consider calling a professional:
- Have I successfully completed similar plumbing repairs before?
- Do I understand the basics of plumbing connections and sealing techniques?
- Am I comfortable working with tools and potentially tight spaces?
- Do I have a good understanding of the water shut-off procedure for my home?
The Risks of DIY Gone Wrong
Attempting a plumbing repair without the necessary skills or knowledge can have serious consequences.
Here are some potential risks:
- Damaging Pipes: Incorrectly tightening or loosening connections can crack or break pipes, leading to leaks and water damage.
- Creating New Leaks: Improper sealing can result in leaks, wasting water and potentially causing mold growth.
- Voiding Warranties: Attempting repairs yourself may void warranties on plumbing fixtures or appliances.
- Accidental Flooding: If you’re unable to stop a leak after starting the repair, you could end up with significant water damage to your home.
Prioritizing Safety
Safety should always be your top priority. Working with water and plumbing can be hazardous. Avoid electrical shock, and wear safety glasses and gloves to protect yourself from injury and contaminants.
If you are at all uncomfortable with any part of the process, consulting a qualified plumber is the wisest decision. It can save you time, money, and the stress of dealing with a potentially messy and costly plumbing disaster.
Maintaining Your New Shower Diverter: Longevity and Care
You’ve successfully installed your new shower diverter – congratulations! But the job isn’t quite finished. Like any mechanical component in your home, your shower diverter benefits from regular maintenance.
A little preventative care can significantly extend its lifespan and ensure consistently smooth operation. Ignoring maintenance can lead to premature wear, frustrating leaks, and the need for another replacement sooner than you’d like.
The Importance of Routine Maintenance
Regular maintenance prevents issues before they arise. It’s about being proactive, not reactive.
Think of it like changing the oil in your car – a small investment of time and effort that saves you from potentially costly repairs down the road. Ignoring maintenance will almost certainly shorten the lifespan of your diverter.
Simple Steps for a Long-Lasting Diverter
Fortunately, maintaining your shower diverter doesn’t require specialized tools or extensive expertise. A few simple habits can make a world of difference.
Regular Cleaning to Combat Mineral Buildup
Hard water is a common culprit in plumbing problems. The minerals in hard water, such as calcium and magnesium, can accumulate over time, forming a crusty buildup that can impede the diverter’s movement.
This buildup can make it difficult to switch between shower and tub modes, and in severe cases, can even cause the diverter to seize up entirely.
To prevent mineral buildup, regularly clean the diverter handle and the surrounding area with a mild cleaning solution. A solution of equal parts white vinegar and water is often effective for dissolving mineral deposits.
Apply the solution with a soft cloth or sponge, let it sit for a few minutes, and then rinse thoroughly with clean water. Avoid using abrasive cleaners or scouring pads, as these can scratch the finish of the diverter.
Gentle Handling: Avoiding Over-Tightening
It can be tempting to crank down on the diverter handle when switching between shower and tub modes, especially if you’re experiencing slight resistance. However, over-tightening the handle can put undue stress on the internal components of the diverter, leading to premature wear and tear.
Instead, use a gentle, deliberate motion when operating the diverter. If you’re finding it difficult to switch between modes, it’s more likely a sign of mineral buildup or another underlying issue that needs to be addressed, rather than a need for brute force.
The Rewards of Preventative Care
By incorporating these simple maintenance practices into your routine, you’ll not only extend the lifespan of your new shower diverter, but you’ll also enjoy consistently smooth and reliable operation.
A properly maintained diverter means fewer headaches, fewer leaks, and less money spent on repairs in the long run. Ultimately, the small amount of time and effort you invest in maintenance will pay off handsomely.
FAQs: Replacing Your Shower Diverter
Here are some frequently asked questions about replacing your shower diverter. Hopefully, they help clear up any lingering questions!
What exactly does a shower diverter do?
The shower diverter is the valve that redirects water between the bathtub faucet and the showerhead. It’s usually a knob, lever, or button located on the faucet. When it’s working correctly, it allows you to choose whether water comes out of the tub spout or the showerhead. A malfunctioning diverter makes it difficult to replace shower diverter function.
How do I know if my shower diverter needs replacing?
Common signs include weak water pressure at the showerhead even when the diverter is engaged. Also, if water leaks from the tub spout while you’re showering, or if the diverter knob is difficult to pull or push, then it is probably time to replace shower diverter.
Are there different types of shower diverters?
Yes, there are several types. The most common are pull-up diverters, tee diverters, and rotary diverters. The type of diverter determines the replacement part you’ll need, so it’s important to identify the kind you have before you replace shower diverter.
Can I replace a shower diverter myself, even if I’m not a plumber?
Yes, replacing a shower diverter is a DIY-friendly project for many homeowners. The process is fairly straightforward and doesn’t usually require special tools. Just follow the steps in our guide, and you should be able to successfully replace shower diverter without calling a professional.
So, now you know how to replace your shower diverter! Go give it a shot, and if you get stuck, don’t hesitate to re-read the guide. Getting your shower back in tip-top shape will be worth it. Happy plumbing!