How to Replace a Leaky Faucet Cartridge

Are you tired of the constant drip-drip-drip of a leaky faucet? Fixing that annoying leak isn't just about stopping the noise – it's also great for conserving water and preventing potential damage to your home. Introduce faucet handle cartridges, those tiny but crucial components that play a big role in your faucet's functionality. Learning how to replace a faulty cartridge, you'll not only save water but also gain the satisfaction of tackling a DIY project like a pro.

Faucet cartridges may seem like small parts, but they wield great power over your faucet's performance. They control the flow of water and ensure that turning the handle results in a smooth operation. However, when these cartridges wear out or become faulty, they can cause leaks and make it difficult to control the water flow. Addressing these issues promptly is key to preventing unnecessary water wastage and potential damage to your fixtures and surroundings.

Understanding how your faucet works and knowing how to identify a faulty cartridge are the first steps towards fixing the problem. We'll explore the different types of cartridges – from ceramic to compression to ball – and learn how to recognize the signs of a cartridge that's past its prime. So, roll up your sleeves and grab your tools – it's time to bid farewell to that pesky leak. With a little know-how and determination, you'll soon have your faucet running smoothly once again.

Types of Faucet Cartridges

Faucet handle cartridges serve as the linchpin of your faucet's functionality, dictating the flow and temperature of water with precision. These small yet intricate mechanisms come in various types, each designed to accommodate different faucet styles and preferences. Among the most common are ceramic, washerless, and ball cartridges, each offering unique advantages and considerations. Ceramic cartridges, for instance, are prized for their durability and resistance to wear, making them a popular choice in modern faucets. Washerless cartridges consist of a neoprene donut-shaped stopper that seals the flow of water by maintaining constant pressure against a steel plate with the aid of a spring. Ball cartridges, found in many single-handle faucets, employ a spherical design to regulate water flow and temperature. 

What You’ll Need to Replace a Cartridge

A comprehensive list of tools is essential, including but not limited to an adjustable wrench, screwdriver set, and needle nose pliers, if needed. These tools facilitate the disassembly and reassembly of the faucet. Have the correct replacement cartridge ready, and plumber's tape to seal connections effectively. 

Tools & Materials:

• Screw driver set
• Adjustable wrench
• Cartridge replacement part
• Allen wrench set
• Towel for cleaning

How to Replace a Leaky Faucet Handle Cartridge

1. Prep: Turn Off Water Supply

The first step involves shutting off the water supply to the faucet. This prevents any unwanted water flow during the repair, reducing the risk of spills and maintaining a dry work environment. Once the water supply is turned off, it's advisable to drain any remaining water from the faucet by opening it fully. This step prevents water from accumulating and causing further mess or complications during disassembly. 

2. Disassembly: Take Apart the Handle

With the faucet emptied, proceed to remove the handle carefully, taking note of the sequence of parts and any potential obstacles. All faucets are different, so your replacement might vary from the instructions provided here. Be sure to follow your manufacturer's recommended assembly and disassembly processes. Depending on your faucet, you may need to locate a set screw before removing the main handle, which are usually removed with a small Allen wrench. Your entry point for removing the handle could be hiding under a hot/cold index button, while other handles may screw on and off from the base. 

3. Disassembly: Remove the Old Cartridge

Once you have the cartridge exposed, carefully examine the cartridge to familiarize yourself with its configuration and any securing mechanisms present. Usually you can simply pull the cartridge straight out by hand or needle nose pliers, or by using an adjustable wrench and unthreading it. 

Proceed to remove the cartridge following the appropriate method for your faucet type. For ceramic cartridges, this often involves unscrewing retaining nuts or using pliers to gently pull the cartridge from its housing. Compression cartridges may require disassembly of the faucet handle and stem assembly to access the cartridge, while ball cartridges typically necessitate the removal of a retaining cap or adjusting ring.

If the cartridge proves stubborn and refuses to budge, don't fret – a cartridge puller can provide the necessary leverage to extract it safely. This specialized tool grips the cartridge securely, allowing you to apply controlled force without risking damage to the surrounding components.

Once the old cartridge is successfully removed, take a moment to clean the area around the cartridge housing thoroughly. Use a damp cloth to remove any accumulated debris or mineral deposits, ensuring a clean surface for the installation of the new cartridge. With a clean surface, the handle will have a smooth reinstallation.

4. Installation: Insert the New Cartridge

Before installation, it's advisable to lubricate the new cartridge, particularly if recommended by the manufacturer. Lubrication facilitates smooth operation and helps prevent premature wear, enhancing the longevity of the cartridge and overall faucet performance.

Carefully insert the new cartridge into the faucet housing, taking care to align it correctly with any grooves or guides present. Apply gentle pressure as needed to ensure a snug fit, being mindful not to force the cartridge into place to avoid damage to the housing or seals.

5. Reassembly: Reassemble the Faucet Handle

As you reassemble the faucet, take care to avoid over-tightening any screws or fasteners, as this can lead to damage or leaks. Instead, use firm but gentle pressure to secure components, verifying that everything is properly seated and aligned. Proceed to reassemble the faucet handle and any associated components in the reverse order of disassembly.

With the new cartridge installed and the faucet reassembled, take a moment to test its functionality before turning the water supply back on. Check for any signs of leaks or irregularities in water flow, addressing any issues promptly to ensure a successful installation.

6. Testing: Check for Function & Leaks

With the new cartridge installed and the faucet reassembled, it's time to proceed with testing and making final adjustments to ensure everything is functioning as it should. Begin by turning the water supply back on gradually, allowing water to flow into the faucet without sudden surges of pressure.

As the water flows, carefully observe the faucet for any signs of leaks or irregularities in water flow. Pay close attention to the areas around the cartridge housing and handle connections, as these are common areas where leaks may occur. If any leaks are detected, immediately shut off the water supply and assess the source of the issue, tightening connections or reseating components as needed.

With the faucet operating smoothly and without leaks, take a moment to make any final adjustments to ensure optimal performance. This may involve fine-tuning the handle tension or adjusting the position of internal components to achieve the desired flow and temperature control.

That’s All- You’ve Replaced a Faucet Cartridge!

In closing, we offer some final tips for maintaining your faucets and preventing future issues. Regularly inspecting for leaks, cleaning aerators, and applying lubrication to moving parts can help prolong the lifespan of your faucets and ensure continued functionality. By incorporating these practices into your routine maintenance regimen, you'll minimize the need for major repairs and enjoy uninterrupted access to clean, reliable water in your home.

Armed with the skills and insights gleaned from this guide, you're well-equipped to tackle a range of household maintenance tasks with confidence and competence. Whether you're replacing a leaky faucet handle cartridge or embarking on a new project altogether, approach each endeavor with determination and a commitment to excellence.

Youtube Installation & Replacement Tutorials

Check out Kingston’s Installation Guides on Youtube for a visual tutorial on how to replace a faucet handle cartridge. There are installations ranging from cartridge replacements to diverter swaps and servicing plumbing under the sink. 

Browse Kingston Brass Faucets