Quick Stats of the Project
- Category: 30-Minute Project
- Difficulty: 1.5/5 (Simple but requires the correct part)
- Tools: Small adjustable wrench or needle-nose pliers, an old toothbrush, replacement aerator (optional), masking tape.
If your kitchen faucet is spraying unevenly or the water pressure has dropped, the culprit is likely a clogged aerator. Over time, calcium deposits and sediment from your pipes get trapped in the fine mesh screen; cleaning or replacing this $5 part can restore a “like-new” stream instantly.
Step-by-Step Instructions
Step #1: Protect the Finish
Before grabbing your tools, wrap a single layer of masking tape or a rubber band around the chrome tip of your faucet. This creates a protective barrier so the metal teeth of your wrench don’t leave permanent scratches or “bite marks” on your expensive fixture.
Step #2: Loosen the Aerator
Use your wrench to grip the flat sides of the aerator at the very tip of the faucet. Turn it clockwise (when looking down from above) to loosen it. Most aerators only need a half-turn with a tool before you can unscrew them the rest of the way by hand.
Step #3: Disassemble and Inspect
Once removed, you will find a small assembly of parts: a rubber washer, a mixer screen, and the outer housing. Lay them out in the order they came out. If the screen is filled with white, crusty buildup (calcium), it’s time for a deep clean.

Step #4: Scrub the Mesh
Use an old toothbrush and warm water to scrub the mesh screen. If the mineral deposits are stubborn, soak the parts in a small bowl of white vinegar for 15 minutes. If the screen is torn or rusted, take the old unit to the hardware store to ensure you buy the exact matching thread size for a replacement.
Step #5: Reassemble and Test
Stack the parts back together (mesh first, then the rubber washer). Screw the aerator back onto the faucet by hand—it should go on smoothly without forcing it. Give it one final “snug” turn with your wrench, remove the protective tape, and turn on the water to check for leaks around the threads.
Pro-Tip: The “Aerator Key” Secret
Check your faucet brand before buying a replacement. Many modern “designer” faucets use “hidden” or “recessed” aerators that don’t have flat sides for a wrench. These require a small plastic “aerator key” to unscrew. If you don’t have one, you can often find them for a couple of dollars at the hardware store or 3D-print one if you have access to a lab!