How to Stop a Dripping Single-Handle Kitchen Faucet by Replacing the Cartridge

How to Stop a Dripping Single-Handle Kitchen Faucet by Replacing the Cartridge

Intermediate
30 min
11 Steps
29 items

This guide provides step-by-step instructions to stop a dripping single-handle kitchen faucet by shutting off the water supply, disassembling the faucet handle and body, removing the old leaky cartridge, installing a new replacement cartridge, and reassembling the faucet components.

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Best for experienced DIYers and homeowners with some experience with basic plumbing knowledge and familiarity with power tools.

Tools & Materials

GEARWRENCH SAE & Metric Folding Hex Key Set (17-Piece) 83510

GEARWRENCH SAE & Metric Folding Hex Key Set (17-Piece) 83510

The GEARWRENCH 17-piece SAE/Metric folding hex key set offers an organized and durable solution for hex key needs. The set includes 2 folding hex key sets, 1 SAE and 1 metric. Hex keys are constructed

Klein Tools 12 in. Quick Adjust Klaw Pump Pliers D504-12B

Klein Tools 12 in. Quick Adjust Klaw Pump Pliers D504-12B

Get a better grip on the job at hand with Klein Tools Klaw Pump Pliers. Push button and quick-ratchet feature allows for fast and easy adjustment to any position. The uniquely designed jaw provides multiple

Milwaukee 4 in. x 1/4 in. Slotted Flat Head Screwdriver with Cushion Grip MT206

Milwaukee 4 in. x 1/4 in. Slotted Flat Head Screwdriver with Cushion Grip MT206

The Milwaukee® 1/4" Slotted 4" Cushion Grip Screwdrivers (USA) are manufactured to give the professional the best-fitting screwdriver with max grip. These screwdriver tips are custom machined to deliver

Common Problems

Sudden water pressure surges can damage plumbing when reassembling the faucet.

Solution: Turn the water on slowly to avoid a sudden surge of pressure which could damage the plumbing.

Sudden water surges can damage new cartridges or cause leaks.

Solution: Turn the water on slowly to avoid a sudden surge of pressure.

Do not lose the retaining clip, as it is essential for securing the new cartridge.

Solution: To avoid this issue: Be mindful of this warning and take appropriate precautions.

The cartridge retainer is difficult to remove without the correct tool.

Solution: This retainer is designed to be removed with a specific tool that fits all four notches, but careful use of pliers can work as an alternative.

Damaging the clip or ring during cartridge removal can prevent proper reassembly and a lasting fix.

Solution: Be careful not to damage the clip or ring during removal.

Scratches and water damage to countertops and sinks.

Solution: Lay down your towel to prevent damages to the countertop and sink

Water damage and messes on the floor.

Solution: Use a waterproof mat for better protection.

Frequently Asked Questions

What tools will I definitely need for this specific faucet cartridge replacement?

You'll primarily need a screwdriver (like the Milwaukee Flat Head), an adjustable wrench (such as the Crescent AC212VS), and pliers (like the Husky Groove Joint or Channellock Long Nose) to disassemble and reassemble the faucet components. A hex key set (GEARWRENCH 83510) might also be necessary if your handle uses set screws.

The most crucial step is identifying your faucet's brand and model number, usually found under the sink or on the faucet itself. If that's not possible, carefully remove the old cartridge and take it to a hardware store to match it, like the MOEN 1225 specified in the materials, to ensure compatibility.

A common mistake is not fully shutting off the water supply, so always confirm both hot and cold valves are off. Another is losing small parts like screws or the retaining clip (OMUR Connecting Clips) down the drain, which can be prevented by plugging the sink drain with a rag or towel (WYPALL L40 Towels).

Yes, this is a beginner-friendly project, designed to be straightforward for most DIYers. For someone new to plumbing, it should typically take about 30-60 minutes, assuming you have the correct replacement cartridge and all necessary tools readily available.

First, ensure the new cartridge is fully seated and the retaining clip (like the OMUR Connecting Clips) is properly installed and secure. Then, recheck for any debris inside the faucet body or on the cartridge's O-rings that might prevent a watertight seal. If the problem persists, the cartridge might be faulty or the wrong model.

Beyond completely shutting off the main water supply to the faucet, it's wise to open the faucet handle briefly to relieve any residual water pressure before disassembly. Also, protect your sink basin by placing a towel or rag inside to prevent scratches or damage from dropped tools.

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30 min | 11 Steps