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Is your outdoor faucet leaking right at the tip, where the water comes out of the spout? Then the culprit is usually the aerator. The aerator is the small screw-on filter at the end of the faucet that releases trapped air when you shut the tap off. Over time, limescale buildup or a worn rubber washer inside the aerator causes it to drip or leak, even when the faucet is fully closed. Luckily, this is one of the easiest outdoor faucet repairs you can do yourself: no plumber needed, and you'll have a new, leak-free aerator installed in under ten minutes. In this guide, we'll show you exactly what you need and how to replace your outdoor faucet's aerator yourself.
If your outdoor faucet is leaking at the aerator, the problem is almost always in that part itself, not the pipe or the faucet as a whole. The aerator contains a fine mesh screen and a rubber sealing ring that can scale up or wear out over time. Recognize this issue? Then all you need to do is unscrew the aerator and swap in a new one. When ordering, double-check the correct size and thread type for your faucet brand so the new aerator fits right away.
If your outdoor faucet only leaks at the tip, the problem is usually the aerator rather than the faucet itself. The aerator contains a rubber ring that hardens or scales up over time, allowing water to seep past it. This happens especially often with outdoor faucets, since they're exposed to weather and hard, lime-rich water all year round. A new aerator usually solves the problem right away, without needing to replace the entire faucet.
The right aerator depends on the brand and type of your outdoor faucet, as well as the thread size at the tip. Measure the outer diameter of your current aerator, or check the brand and model number of your faucet. Still not sure? Use our finder tool to quickly find the right part for your specific outdoor faucet without having to guess at measurements yourself.
You can unscrew the aerator and soak it in a bowl of white vinegar to dissolve limescale buildup. This often helps temporarily with a clogged or slowly dripping faucet. If the leak continues after cleaning and reinstalling the aerator, the rubber sealing ring is likely worn out. In that case, replacing it with a new aerator is the fastest and most lasting solution.
It's strongly recommended to always shut off the water supply before unscrewing the aerator, even if the faucet itself appears closed. Without shutting off the supply, water can still spray out under pressure when you loosen the part. This prevents not just a messy job, but also potential water damage around your outdoor faucet. So always close the main valve or drain valve first before you get started.
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