How to Fix a Leaky Faucet in 10 Minutes

Stop Paying Plumbers for Minor Fixes

A dripping faucet is incredibly annoying, and worse, it can waste hundreds of gallons of water over a single month. Most homeowners assume they need to call a plumber, but replacing a worn-out cartridge or O-ring is one of the easiest DIY tasks you can tackle.

Before you pick up the phone and spend $150 on a service call, grab a wrench and follow these simple steps.

Tools You Will Need

• Adjustable Wrench: Essential for removing the packing nut.
• Allen Wrench (Hex Key): Often required to remove the handle set screw.
• Phillips-head Screwdriver: For removing the handle screw on older models.
• Replacement Cartridge or O-Rings: You must buy the exact match for your faucet brand (e.g., Moen, Delta).

Step-by-Step Instructions

Step 1: Turn Off the Water Supply

This is the most critical step. Look under your sink and locate the two oval-shaped valves (one for hot, one for cold). Turn them completely to the right (clockwise) until they stop. Turn on the faucet to ensure no water comes out.

Step 2: Remove the Faucet Handle

Look for a small hole on the back or side of the handle. Insert your Allen wrench and loosen the set screw. Once loose, pull the handle straight up and off the stem.

Step 3: Remove the Retaining Nut

You will see a brass or plastic nut holding the cartridge in place. Use your adjustable wrench to loosen it by turning it counter-clockwise. Remove it completely.

Step 4: Swap the Cartridge

Pull the old cartridge straight up. It might require some wiggling. Take it to the hardware store to ensure you buy the exact replacement. Insert the new cartridge, making sure the alignment tabs slide into the corresponding notches in the valve body.

Step 5: Reassemble and Test

Screw the retaining nut back on tightly. Reattach the handle and tighten the set screw. Finally, turn the water valves under the sink back on.

Turn the faucet on and off a few times. If there are no drips, you have successfully fixed your faucet!