How to Replace a Wall Shower Diverter

Virginia Jul 01, 2026

If your showerhead is dripping or not delivering water as it should, it might be time to replace your wall shower diverter. This essential plumbing component controls the flow of water between your shower and bathtub faucet. Here's a comprehensive guide on how to replace a wall shower diverter, ensuring your bathroom is functional and water-efficient once again.

Shower Diverter Issues and Easy Repairs
Shower Diverter Issues and Easy Repairs

Before you start, gather your tools and materials. You'll need an adjustable wrench, a screwdriver, plumber's tape, and a new diverter valve. Always ensure you have the correct valve for your plumbing setup, as there are different types like compression, sweat, and push-fit.

No Shower? No Problem. Install a diverter shower in 1 Hour.
No Shower? No Problem. Install a diverter shower in 1 Hour.

Understanding Your Shower Diverter

First, let's understand the role of a shower diverter. It's a valve that controls the flow of water between your showerhead and bathtub faucet. When you turn on the shower, the diverter redirects water to the showerhead, and when you turn off the shower, it redirects water back to the bathtub faucet.

How to repair replace 3 way Shower Faucet Diverter - FAST & EASY!
How to repair replace 3 way Shower Faucet Diverter - FAST & EASY!

Diverters can fail due to mineral buildup, corrosion, or simply wearing out over time. When this happens, you might experience low water pressure, leaks, or water dripping from the showerhead even when it's turned off.

Identifying the Diverter Valve

No Shower? No Problem. Install a diverter shower in 1 Hour.
No Shower? No Problem. Install a diverter shower in 1 Hour.

Before you start the replacement process, you need to locate the diverter valve. It's usually situated behind the wall plate, which is typically found near the showerhead or bathtub faucet. The plate might be held in place by screws or pop-out tabs.

Once you've removed the plate, you should see the diverter valve. It's the component with a handle or lever that you use to switch between the shower and bathtub faucet. If you're unsure, consult your home's blueprint or ask a professional plumber for assistance.

Preparing for the Replacement

how to install a tub / shower diverter
how to install a tub / shower diverter

Before you start the replacement, turn off the water supply to your shower and bathtub faucet. The water supply valves are usually located near the fixture itself or under the sink. Once you've turned off the water, open the faucets to relieve any remaining water pressure.

Next, cover the drain with a rag to prevent any small parts from falling into the pipes. Also, lay down a towel or drop cloth to protect your floor from any water drips or debris.

Removing the Old Diverter Valve

a person is fixing a bathroom faucet with red handles and levers on the wall
a person is fixing a bathroom faucet with red handles and levers on the wall

Now that you're prepared, it's time to remove the old diverter valve. Start by turning the handle or lever to the shower position. This will ensure that any remaining water in the line drains out.

Using an adjustable wrench, carefully loosen and remove the nut that secures the diverter valve to the water supply pipe. You might need to use some force, but be cautious not to damage the pipe. Once the nut is removed, you should be able to pull the old diverter valve out of the wall.

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463K views · 2.2K reactions | Shower valve plug tips…I finished installing the valve but have to plug the shower head drop ear. One way to do it is with a copper plug and SharkBite Max cap. I like this option because I can swap it out for a washing machine angle valve which helps me get water to the shower for thin-mortar and joint compound 🔥#plumbing #bathroomremodel #diy #sharkbiteplumbing #homerepairtutor | Home Repair Tutor | Facebook
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Preparing the New Diverter Valve

Before installing the new diverter valve, wrap the threads with plumber's tape. This will help create a watertight seal and prevent leaks. Wrap the tape clockwise, following the direction of the threads.

If your new diverter valve doesn't come with a washer, you'll need to purchase one that fits. Place the washer on the valve, ensuring it's facing the correct direction. The flat side of the washer should be against the valve, while the beveled side should face the pipe.

Installing the New Diverter Valve

Insert the new diverter valve into the water supply pipe, ensuring it's properly aligned. Hand-tighten the nut, using the adjustable wrench to secure it. Tighten it as much as you can by hand, then use the wrench to give it an extra quarter to half turn. Be careful not to overtighten, as this can damage the valve or pipe.

Once the nut is tightened, turn the handle or lever to the bathtub position. Then, turn the water supply valves back on. Check for any leaks around the new diverter valve, and make sure the shower and bathtub faucet are both working correctly.

Testing the New Diverter Valve

After the installation, it's crucial to test the new diverter valve to ensure it's working correctly. Turn on the shower and let the water run for a few minutes. Then, turn off the shower and turn on the bathtub faucet. The water should flow smoothly from the faucet without any leaks or drips from the showerhead.

If the diverter valve is working correctly, you can replace the wall plate and clean up your workspace. If you encounter any issues, don't hesitate to contact a professional plumber for assistance.

Replacing a wall shower diverter can seem like a daunting task, but with the right tools and knowledge, it's a manageable DIY project. Always remember to prioritize safety and take your time to ensure a proper installation. Happy plumbing!