How to Fix a Leaky Faucet: A Complete DIY Guide

A dripping faucet isn't just an annoying sound keeping you up at night – it's literally money going down the drain. A faucet that drips just once per second can waste over 3,000 gallons of water per year. But don't worry! With the right tools and this step-by-step guide, you can fix most leaky faucets in under an hour.

Before You Start: What You'll Need

The exact tools needed may vary depending on your faucet type, but here's what you should have on hand:

• Adjustable wrench
• Phillips and flathead screwdrivers
• Replacement parts (O-rings, washers, or cartridges)
• Plumber's tape
• Clean rags
• Needle-nose pliers
• White vinegar
• Small bucket or container

Step 1: Identify Your Faucet Type

Before you begin repairs, you need to know what type of faucet you're dealing with. There are four common types:

• Compression Faucets: Usually found in older homes, these have separate handles for hot and cold water
• Ball-Type Faucets: Common in kitchen sinks, these have a single handle that moves over a ball bearing
• Cartridge Faucets: Feature one or two handles and contain a cartridge that controls water flow
• Ceramic Disk Faucets: Modern faucets with a single handle that moves over a ceramic cylinder

Step 2: Preparation Is Key

1. Shut off the water supply valves under the sink
2. Open the faucet to release any remaining water
3. Place a stopper or rag in the drain to prevent losing small parts
4. Take photos of the faucet assembly before disassembly

Step 3: The Repair Process

For Compression Faucets:

1. Remove the decorative cap on the handle
2. Unscrew the handle screw and remove the handle
3. Use a wrench to loosen the packing nut
4. Remove the stem
5. Check the washer and O-ring for wear
6. Replace damaged parts
7. Reassemble in reverse order

For Ball-Type Faucets:

1. Remove the handle by loosening the set screw
2. Remove the cap and collar
3. Remove the ball
4. Replace the seats, springs, and O-rings
5. Reassemble carefully, ensuring proper alignment

For Cartridge Faucets:

1. Remove handle and decorative cap
2. Remove the retaining clip
3. Pull out the cartridge
4. Replace with new cartridge
5. Reassemble faucet

For Ceramic Disk Faucets:

1. Remove handle and cap
2. Unscrew the disk cylinder
3. Clean or replace seals
4. Soak cylinder in white vinegar if mineral deposits are present
5. Reassemble carefully to avoid damage

Pro Tips for Success

• Clean all parts thoroughly before reassembly
• Take pictures during disassembly to help with reassembly
• Replace all washers and O-rings while you have the faucet apart
• Don't overtighten parts during reassembly
• Run water slowly when first testing your repair

When to Call a Professional

While most faucet repairs are DIY-friendly, call a licensed plumber if you:

• Encounter corroded parts that won't budge
• Notice damage to the water supply lines
• Find cracks in the faucet body
• Have a specialty or antique faucet
• Lack the necessary tools or confidence

Preventive Maintenance

To avoid future leaks:

• Don't overtighten handles
• Clean aerators regularly
• Address minor drips promptly
• Consider upgrading to modern ceramic disk faucets
• Avoid using harsh chemicals that can damage seals