Delta Single Handle Bathroom Faucet Cartridge Replacement

If you're experiencing problems with your Delta single handle bathroom faucet, such as leaks, drips, or difficulty adjusting the water temperature, it may be time to replace the cartridge. Replacing the cartridge is a relatively simple and inexpensive repair that can be done in about 30 minutes with just a few basic tools.

Tools and Materials You'll Need:

Replacement Delta faucet cartridge (make sure it's the correct model for your faucet)
Phillips head screwdriver
Adjustable wrench
Allen wrench (if applicable)
Plumber's putty (optional)

Step-by-Step Instructions:

1. Turn Off the Water Supply

Before starting any work, turn off the water supply to your faucet by closing the shut-off valves located under the sink. Open the faucet to release any remaining water in the lines.

2. Remove the Handle and Trim

Use a Phillips head screwdriver or Allen wrench to remove the handle from the faucet. Once the handle is removed, you should see a plastic trim piece that surrounds the cartridge. Use a screwdriver to pry off the trim piece.

3. Unscrew the Cartridge

Use an adjustable wrench to loosen the cartridge retaining nut. Once the nut is loose, you can unscrew the cartridge from the faucet body. Be careful not to damage the O-rings on the cartridge when removing it.

4. Inspect the Cartridge

Inspect the old cartridge for any visible damage, such as cracks or mineral buildup. If the cartridge is damaged, it will need to be replaced.

5. Apply Plumber's Putty (Optional)

Apply a small amount of plumber's putty to the threads of the new cartridge. This will help to create a watertight seal when the cartridge is installed.

6. Install the New Cartridge

Screw the new cartridge into the faucet body by hand as far as you can. Then, use an adjustable wrench to tighten the cartridge retaining nut. Do not overtighten the nut.

7. Reinstall the Trim and Handle

Reinstall the plastic trim piece by snapping it into place. Then, screw the handle back onto the faucet. Turn on the water supply and check for leaks. If there are any leaks, tighten the cartridge retaining nut or replace the O-rings.

Tips:

If you're not sure what type of cartridge you need, consult your faucet's user manual or contact the manufacturer.
Be careful not to damage the O-rings on the cartridge when removing or installing it.
If you're having difficulty removing the cartridge, you can try using a penetrating oil to loosen the retaining nut.
If you're not comfortable replacing the cartridge yourself, you can call a licensed plumber for assistance.

Conclusion:

Replacing a Delta single handle bathroom faucet cartridge is a relatively simple repair that can be done in about 30 minutes with just a few basic tools. By following these step-by-step instructions, you can save yourself the cost of hiring a plumber and keep your faucet in good working order.