How To Install A Bathroom Faucet Cartridge

How to Install a Bathroom Faucet Cartridge

A bathroom faucet cartridge is a crucial component that controls the flow of water and temperature in your sink or shower. When it malfunctions, you may experience issues like leaks, dripping, or difficulty regulating water temperature. Replacing a faucet cartridge is a relatively simple task that can be completed by most homeowners with basic tools and a bit of know-how. Here's a step-by-step guide to help you through the process:

Step 1: Gather Tools and Materials

Before starting, ensure you have the following tools and materials:

New faucet cartridge
Adjustable wrench
Allen wrench (if required)
Pliers
Bucket or bowl
Cloth or paper towels

Step 2: Shut Off Water Supply

Locate the shut-off valves under the sink or behind the shower valve. Turn both valves clockwise to cut off the water supply. This step prevents water from spraying when you remove the old cartridge.

Step 3: Remove Decorative Cap

Most faucets have a small decorative cap covering the handle screws. Use a screwdriver or Allen wrench to remove the cap.

Step 4: Remove Handle Screws

Under the decorative cap, you'll find screws securing the handle to the stem. Use a screwdriver to remove these screws.

Step 5: Remove Handle

Once the screws are removed, carefully pull the handle straight up to detach it from the stem.

Step 6: Remove Cartridge Nut

Below the handle, you'll see a cartridge nut. Use an adjustable wrench to loosen and remove the nut.

Step 7: Remove Old Cartridge

Once the cartridge nut is removed, you can pull out the old cartridge. It may be stuck, so use pliers to gently grip and pull it straight up.

Step 8: Inspect Stem

Before installing the new cartridge, inspect the stem for any damage or corrosion. If the stem is damaged, it may need to be replaced as well.

Step 9: Install New Cartridge

Align the new cartridge with the stem and insert it straight down. Push it in until it seats firmly.

Step 10: Install Cartridge Nut

Hand-tighten the cartridge nut onto the stem and then use an adjustable wrench to further tighten it. Avoid overtightening.

Step 11: Reinstall Handle

Place the handle back onto the stem and secure it with the screws removed earlier. Tighten the screws just enough to secure the handle.

Step 12: Install Decorative Cap

Replace the decorative cap over the handle screws.

Step 13: Turn on Water Supply

Go back to the shut-off valves and turn them counterclockwise to restore the water supply.

Step 14: Test Faucet

Operate the faucet to ensure it's working correctly. Check for any leaks or dripping. Adjust the cartridge or tighten connections as needed.

Additional Tips

Here are a few additional tips to keep in mind:

Replace the cartridge with a genuine part from the faucet manufacturer to ensure compatibility.
If you encounter any difficulties during the installation, consult a professional plumber.
Regular maintenance, including periodic cartridge replacement, can extend the life of your faucet.

Replacing a bathroom faucet cartridge is a relatively simple task that can be completed with a bit of preparation and care. By following these steps, you can restore your faucet to proper working condition and enjoy a flawlessly functioning sink or shower.