How to Fix a Dripping Kitchen Faucet to Save Money on Your Water Bill

That constant, slow drip... drip... drip from your kitchen faucet is more than just an annoying background noise. It is a silent budget killer. A single leaking faucet can waste more than 3,000 gallons of water a year, which is enough water to take more than 180 showers! Most homeowners immediately call an expensive plumber when they see a leak, resulting in a hefty $150 repair bill for a job that takes less than 20 minutes to complete.

The good news is that fixing a dripping kitchen faucet is one of the easiest DIY projects you can tackle yourself. In 95% of cases, the leak is caused by a worn-out rubber washer or a damaged O-ring inside the handle assembly. Here is your simple, step-by-step beginner's guide to fixing it on a budget without hiring a contractor.

Step 1: Shut Off the Water Supply

Before you touch any tools, you must turn off the water flowing to your kitchen sink. Open the cabinet doors underneath your sink and look for two small shut-off valves connected to the metal pipes (one for hot water, one for cold water). Turn both valves clockwise until they are tightly closed. Once closed, turn on the kitchen faucet handles to release any remaining water pressure left inside the pipes.

Step 2: Remove the Faucet Handle

To look inside the faucet, you need to remove the handle assembly.

• Look for a small plastic decorative cap on your handle (often showing a red or blue dot for hot/cold). Use a flathead screwdriver to gently pry this cap off.
• Inside, you will see a small hidden screw. Use an Allen wrench or a Phillips screwdriver to loosen the screw, and then gently pull the faucet handle straight up and off.

Step 3: Remove the Cartridge or Stem

Underneath the handle, you will see a metal parts assembly holding a plastic or brass cartridge inside the faucet body. Use an adjustable wrench to loosen the metal packing nut by turning it counterclockwise. Once the nut is removed, use your fingers or a pair of pliers to pull the faucet cartridge straight out. Take a close look at the small rubber seals, washers, and O-rings at the bottom of the cartridge. If they look cracked, torn, or covered in hard water deposits, you have found the source of the leak!

Step 4: Replace the Worn-Out Parts

The cheapest way to fix this is to head to your local hardware store. Bring your old cartridge, washers, and O-rings with you so you can buy the exact matching replacements. A brand-new rubber washer kit usually costs less than $3.

• Remove the old, cracked rubber parts from the cartridge.
• Coat the new rubber O-rings with a tiny bit of silicone plumber's grease to ensure a tight seal, and snap them into place on the cartridge.

Step 5: Reassemble and Test Your Work

Now, simply reverse the steps to put your kitchen faucet back together:

• Slide the cartridge back into the faucet body exactly the way it came out.
• Tighten the metal packing nut back down with your wrench (be careful not to overtighten and crack the plastic parts).
• Reattach the faucet handle and tighten the hidden screw.
• Go underneath the sink and turn the water supply valves counterclockwise to turn the water back on.

Conclusion

Turn on your faucet, let the water run for a minute, and then shut it off. You will notice that the annoying dripping sound is completely gone! By spending just $3 on a small rubber washer and taking 20 minutes of your time, you just saved yourself a massive plumber's bill and lowered your monthly water utility costs. It is a massive DIY victory for your wallet!