How to Replace a Clogged Faucet Aerator

Aerators are the unsung heroes of your plumbing fixtures, working behind the scenes to mix air with water to create a steady, splash-free stream. When your faucet starts spraying erratically or the pressure suddenly drops to a trickle, the culprit is almost always mineral buildup or debris trapped in that fine mesh screen at the tip of the spout. Fixing this is one of the most satisfying quick wins in home maintenance because it requires zero specialized skill and takes less than ten minutes. Done well, your faucet will return to a smooth, aerated flow, and you will have cleared out the sediment that was silently working against your pipes.

1. Protect the finish first. Wrap a thick rubber band or a piece of soft cloth around the base of the aerator to prevent the pliers from scratching the chrome or nickel finish.
2. Unscrew with care. Grip the aerator firmly with your pliers and turn it counter-clockwise. If it does not budge, apply a small amount of penetrating oil to the threads and let it sit for five minutes before trying again.
3. Diagnose the damage. Once removed, disassemble the aerator housing to check the internal screen, the rubber washer, and the plastic mixing chamber. Look for white, crusty calcium deposits or small bits of sand and grit.
4. Soak and scrub. If the screen is heavily calcified, soak the parts in white vinegar for an hour and scrub with an old toothbrush. If the mesh is damaged or the debris is stubborn, simply discard the internal pieces and install a new aerator insert.
5. Flush the spout clean. Before putting the new aerator on, turn the faucet on for five seconds to flush out any loose sediment from the spout. This prevents your clean aerator from immediately catching new debris.
6. Hand-tighten to seal. Screw the aerator back onto the faucet by hand, turning clockwise until it is snug. Avoid using pliers for the final tightening to prevent stripping the threads or damaging the seal.