Skip to main content

Remove and Inspect the Old Cartridge — Identify and Order the Replacement Faucet Part

Beginner2 hours

Part of project

Kitchen Faucet Repair: A Step-by-Step Guide to Replacing Faucet Parts · Step 3 of 5

Helpful?

In this video

As a final method, remove the old cartridge for inspection. First, turn off the main water supply to the shower. Use a hex wrench to loosen the set screw on the faucet handle and remove the handle. Slide off any sleeves or covers. Use pliers to carefully pull out the cartridge retaining clip. You may need to turn a bonnet cap counter-clockwise to release the cartridge. Once removed, inspect the cartridge for any serial numbers. It's recommended to take the old cartridge to a plumbing store for a precise match. Measuring it with a caliper and taking a photo can also be helpful.

Goal: Inspect Old Cartridge

  • Ensure the main water supply to the shower is turned off before starting.
  • Measure the old cartridge with a caliper and take a photo to make matching it at the store easier.

Used in this video

  • Hex Wrench (Tool Type: Hand Tools, Power Source: Manual, Allen Wrench/Hex Key Size: Various sizes)To loosen the set screw on the faucet handle.
  • Pliers (Tool Type: Hand tools, Power Source: Manual, Pliers Type: Needle-nose, Slip-joint)To pull out the cartridge retaining clip.
  • Caliper (Tool Type: Measuring Tools, Power Source: Manual, Measuring Tool: Caliper) · optionalTo precisely measure the old cartridge for matching.
  • Camera/Phone (Tool Type: Electrical Tools, Power Source: Battery) · optionalTo take a photo of the old cartridge for identification at a store.
2.6K views1715-30 minutes
RepairClinic.com

641K subscribers

View Channel

FAQs

What specific tools, beyond a basic screwdriver, might I need for this faucet repair?

You might need an adjustable wrench or basin wrench for stubborn nuts under the sink. Depending on your faucet, a set of Allen wrenches (hex keys) may be required to remove the handle, and some cartridges require a specialized removal tool. Penetrating oil can also be useful for seized parts.

What's the most crucial first step to ensure safety and prevent water damage before I start this repair?

The absolute first step is to completely turn off the hot and cold water supply lines leading to the faucet, usually found under the sink. Then, open the faucet to drain any remaining water from the lines and relieve pressure. This prevents accidental floods and makes the repair safer.

This project is rated 'beginner' and '2 hours.' What are common issues that could make it take longer or become more difficult?

Corroded or seized parts can be difficult to remove, especially if the faucet is old, potentially adding significant time. Identifying the correct replacement part can also cause delays if the brand or model is obscure. Tight spaces under the sink can make access challenging.

After installing the new cartridge, what should I do if the faucet still leaks or doesn't operate correctly?

First, double-check that the new cartridge is fully seated and properly aligned according to any notches or keys, as incorrect alignment is a common cause of leaks. Ensure all retaining nuts or screws are snug, but do not overtighten. If the issue persists, inspect the cartridge for any defects or verify it's the exact correct model for your faucet.

Transcript
Hide

Step 3. Inspect the old cartridge for a serial number. If you still can't identify the model, it's time to remove the old cartridge. Start by turning off the water supply. Use a hex wrench to loosen the screws, then remove the handle. Carefully slide out the cartridge clip, and if your faucet has a bonnet cap, turn it left to release the cartridge. Once removed, take the old cartridge to a plumbing store to identify the serial number. Measure your cartridge with a caliper and take a quick photo. This can help the plumbing store match your cartridge precisely.

Auto-generated transcript. May contain errors.