How Do You Replace A Bathtub Faucet Cartridge

How to Replace a Bathtub Faucet Cartridge

Replacing a bathtub faucet cartridge is a straightforward task that can be completed in under an hour. By following these step-by-step instructions, homeowners can save themselves the cost of hiring a plumber. Here's what you need to know:

Tools and Materials:

Adjustable wrench
Hex wrench (Allen key)
Phillips screwdriver
Flathead screwdriver
Replacement cartridge
Plumber's putty
Rags or a bucket

Steps:

Step 1: Turn Off Water Supply

Locate the shut-off valves under the sink or behind the bathtub. Turn them clockwise to close the water supply to the faucet.

Step 2: Remove the Faucet Handle

Use a Phillips screwdriver to remove the screws holding the faucet handle in place. Pull the handle off the stem.

Step 3: Remove the Cartridge Screw

Use a hex wrench to loosen the screw located in the center of the cartridge. Do not remove the screw completely.

Step 4: Remove the Cartridge

Use an adjustable wrench to grip the cartridge and carefully pull it straight out of the faucet body. Note the orientation of the cartridge for later reference.

Step 5: Inspect and Prepare the Cartridge

Inspect the old cartridge for any damage or wear. Apply a thin layer of plumber's putty to the threads of the new cartridge.

Step 6: Insert the New Cartridge

Align the new cartridge with the faucet body and push it in firmly. Ensure it is seated correctly in the same orientation as the old cartridge.

Step 7: Tighten the Cartridge Screw

Use the hex wrench to tighten the cartridge screw but avoid overtightening.

Step 8: Reinstall the Handle

Reinstall the faucet handle by pushing it onto the stem and securing it with the screws removed earlier.

Step 9: Turn On Water Supply

Slowly turn on the shut-off valves to allow water to flow through the faucet. Check for any leaks around the cartridge or handle.

Tips:

If you encounter any stubborn screws or bolts, use a penetrating oil to loosen them.
If the new cartridge doesn't fit snugly, wrap a few layers of Teflon tape around the threads to create a better seal.
If the leak persists after replacing the cartridge, it may indicate a problem elsewhere in the faucet or plumbing system. Seek professional help.