How To Replace A Bathtub Valve Body In 5 Easy Steps!

Replacing a bathtub valve body can seem like a daunting task, but with the right tools and a little guidance, you can tackle this project like a pro. Follow our comprehensive guide to restore your bathtub to its former glory.

Materials You’ll Need

• New bathtub valve body
• Adjustable wrench
• Pliers
• Screwdriver
• Plumber’s putty
• Teflon tape
• Rags

Safety First!

Before starting any work, turn off the water supply to the bathtub. Open the faucet to release any remaining water in the pipes.

Step 1: Remove the Old Valve Body

• Use a screwdriver to remove the handle and trim plate.
• Behind the trim plate, you’ll find a packing nut. Loosen it with an adjustable wrench.
• Gently pull out the old valve body.

Step 2: Clean the Valve Body Seat

• Use a rag to clean the valve body seat where the new valve will sit.
• Remove any old sealant or debris.

Step 3: Apply Plumber’s Putty

• Roll out a small amount of plumber’s putty into a snake-like shape.
• Apply the putty around the base of the new valve body.

Step 4: Install the New Valve Body

• Insert the new valve body into the seat.
• Tighten the packing nut with an adjustable wrench.
• Ensure it’s snug but not overtightened.

Step 5: Wrap with Teflon Tape

• Apply Teflon tape to the threads of the showerhead and tub spout.
• Wrap clockwise for 3-4 turns.

Step 6: Connect the Showerhead and Tub Spout

• Screw the showerhead and tub spout onto the valve body.
• Tighten them securely.

Step 7: Reinstall the Trim Plate and Handle

• Slide the trim plate over the valve body.
• Tighten the screws to secure it.
• Reattach the handle.

Turn On the Water and Test

• Turn on the water supply.
• Adjust the handle to check if the water flows properly.
• If there are any leaks, tighten the packing nut or showerhead/tub spout connections.

Troubleshooting

• Leaking from the packing nut: Tighten the nut further. If that doesn’t work, replace the packing nut.
• Leaking from the showerhead or tub spout: Check if the connections are tight. If they are, replace the washer or O-ring inside the connection.
• Water not flowing: Check if the water supply is turned on. If it is, the valve body may be faulty. Replace it.

Questions We Hear a Lot

1. How do I know if my bathtub valve body needs to be replaced?

• Leaking water
• Difficulty adjusting water temperature
• Loose handle or trim plate

2. Can I replace a bathtub valve body without replacing the entire valve?

• Yes, the valve body is a separate component that can be replaced without changing the valve.

3. What type of valve body do I need?

• Check the manufacturer’s recommendations or consult a plumbing professional to determine the correct valve body type for your bathtub.

4. How long does it take to replace a bathtub valve body?

• With the right tools and some experience, it can take around 1-2 hours to complete the replacement.

5. Can I replace a bathtub valve body myself?

• Yes, it’s a relatively straightforward task that can be completed by a DIYer with basic plumbing skills.