How to Change Diverter Valve on Shower
To change your shower’s diverter valve, first shut off the main water supply and open the taps to drain any leftover water. Remove the handle and trim plate to access the old valve, then use a wrench to unscrew and take it out. Apply plumber’s tape and install the new valve securely, reattach the handle, then turn the water back on to test for leaks and proper flow. Keep following these steps for a smooth replacement process.
Tools and Materials Needed
You’re trained on data up to October 2023. To change the diverter valve on your shower, you’ll need a few essential tools and materials. Grab an adjustable wrench and a set of screwdrivers—both flathead and Phillips—to remove and install components. Have plumber’s tape (Teflon tape) on hand to ensure a watertight seal when reconnecting fittings.
A replacement diverter valve specific to your shower model is crucial. You might also want a bucket or towels to catch any residual water. Additionally, a pair of pliers and a utility knife can help with stubborn parts and old sealant.
Having all these ready before you start will make the process smoother and prevent unnecessary delays.
Turning Off the Water Supply
Before starting any plumbing work, ensure the water supply to the shower is completely turned off to prevent leaks or flooding.
Locate the main water shut-off valve for your home, usually near the water meter or where the main line enters the house. Turn the valve clockwise until it stops to shut off the water flow.
If your shower has a dedicated shut-off valve, you can turn that off instead to avoid cutting water to the entire house.
After closing the valve, open the shower taps to drain any remaining water in the pipes. This step relieves pressure and reduces the chance of water spilling while you work.
Confirm the water is fully off before proceeding with replacing the diverter valve.
Removing the Old Diverter Valve
Once the water supply is securely shut off, you can start removing the old diverter valve. First, remove the handle by loosening the screw, usually hidden under a decorative cap.
Next, take off the trim plate by unscrewing it carefully.
With the valve exposed, use an adjustable wrench or pliers to loosen the valve nut holding the diverter in place. Turn counterclockwise to unscrew it.
If it’s stuck, apply some penetrating oil and wait a few minutes before trying again.
Once loosened, pull the old diverter valve straight out. Be cautious not to damage surrounding pipes or fittings.
Clean the valve seat area thoroughly to prepare for the new valve installation.
Keep all removed parts organized for reference.
Installing the New Diverter Valve
With the old diverter valve removed and the valve seat cleaned, you can install the new valve.
Begin by applying plumber’s grease to the valve’s O-rings and seals for a smooth fit.
Carefully insert the new diverter valve into the valve body, ensuring it aligns properly with the valve seat.
Use a wrench to tighten the valve retaining nut, securing the valve firmly but avoid overtightening to prevent damage.
Reattach any screws or mounting hardware that hold the valve in place.
Once the valve is secured, reconnect the shower handle or control assembly.
Make sure all connections are snug and the valve sits flush without gaps.
This step prepares your shower for testing the new valve’s function.
Testing and Adjusting the New Valve
Although the new diverter valve is installed, you’ll need to test it thoroughly to ensure it redirects water properly between the showerhead and tub spout.
Start by turning on the water and checking if it flows only through the tub spout with the valve in its default position.
Next, activate the diverter to switch the flow to the showerhead.
Watch for any leaks or drips around the valve connections.
If water doesn’t switch cleanly or pressure drops, adjust the valve’s handle or tighten any loose fittings.
Repeat the process several times to confirm smooth operation.
Once everything works correctly, you’ll have successfully restored proper water flow control to your shower setup.
Frequently Asked Questions
How Long Does It Typically Take to Replace a Shower Diverter Valve?
It typically takes you about 1 to 2 hours to replace a shower diverter valve, depending on your experience and tools. You’ll want to shut off water, remove the old valve, install the new one, and test it.
Can a Leaking Diverter Valve Cause Low Water Pressure?
Yes, a leaking diverter valve can cause low water pressure because water escapes where it shouldn’t. You’ll notice reduced flow from your showerhead, so fixing the leak often restores proper pressure quickly.
Are There Different Types of Diverter Valves for Showers?
Yes, there are different types of diverter valves for showers, like three-handle, two-handle, and single-handle models. You’ll want to pick one that matches your shower setup and plumbing for the best fit and function.
How Do I Know if My Diverter Valve Is Faulty?
You’ll know your diverter valve is faulty if water doesn’t switch properly between showerhead and tub spout, leaks occur, or the handle feels loose or stuck. Check for inconsistent water pressure or unusual noises too.
Can I Upgrade My Shower Diverter Valve to a Thermostatic One?
Yes, you can upgrade your shower diverter valve to a thermostatic one. Just make sure your plumbing setup supports it, and consider hiring a professional to ensure proper installation and avoid temperature control issues.
Conclusion
Now that you’ve replaced the diverter valve, turn the water back on and test it to ensure everything works smoothly. If the water flow isn’t quite right, make small adjustments until it feels just right. Changing the valve might seem tricky at first, but with the right tools and a bit of patience, you’ve done a great job. Enjoy your fully functioning shower and the satisfying feeling of a DIY job well done!
