18.09.2023 ... Watch as Lou Manfredini, Ace's Home Expert, shows you how to remove and replace a faucet cartridge. Products Featured: Valve Cartridge ......
Is your single handle faucet dripping or not functioning as it should? The issue might be a worn-out cartridge. Replacing it is a straightforward DIY project that can save you the cost of a plumber. Here's a comprehensive guide to help you replace the cartridge in your single handle faucet.
Before you start, it's essential to understand the components of your faucet. Single handle faucets use a cartridge to control water flow and temperature. The cartridge is a cylindrical piece that fits into the faucet body. It has a rubber O-ring at the bottom that creates a watertight seal. Over time, the cartridge can wear out, causing leaks or poor water flow.
Before you begin, gather all the tools you'll need to avoid multiple trips to the hardware store. Here's a list of tools you'll need:

Before you start, turn off the water supply to your faucet. The valves are usually located under the sink. Once the water is off, turn on the faucet to relieve any remaining pressure. Have a towel or bucket nearby to catch any water that may drip out.
Start by removing the handle. The process varies depending on your faucet model, but it usually involves unscrewing a setscrew located under the handle. Use a flathead screwdriver to remove it. Once the setscrew is out, lift off the handle.
Next, remove the cover plate. It's usually held in place by screws. Use a screwdriver to remove them and lift off the plate.

With the handle and cover plate off, you should see the cartridge. It's the cylindrical piece in the middle of the faucet. Before you remove it, take note of its position. This will help you install the new one correctly.
Use an adjustable wrench to grip the cartridge. Turn it counterclockwise to remove it. If it's stuck, use penetrating oil to loosen it. If it's still not budging, you might need to use pliers to grip it more securely.
Once the cartridge is out, clean the area around the faucet seat. This is where the new cartridge will sit. Make sure it's clean and free of any debris.
Before you install the new cartridge, wrap the O-ring at the bottom with plumber's tape. This will help create a better seal and prevent leaks.
Insert the new cartridge into the faucet seat. Make sure it's in the same position as the old one. Turn it clockwise to tighten it. Don't overtighten it, as this can damage the cartridge and cause leaks.
Reinstall the cover plate and handle. Make sure the handle is in the same position as it was before. Reattach the setscrew to secure the handle.
Turn the water supply back on. Check for any leaks around the cartridge. If there are no leaks, your faucet should be working like new.
| Issue | Solution |
|---|---|
| Leaking around the handle | Check that the handle is securely fastened. Tighten the setscrew if necessary. |
| Water not turning off | Check that the cartridge is fully seated. Turn it clockwise to tighten it. |
| Water temperature not mixing correctly | Check that the cartridge is in the correct position. If it's not, remove it and reinstall it. |
Remember, if you're unsure about any part of the process, it's always best to call a professional plumber. They have the tools and expertise to handle any faucet repair safely and effectively.
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