Why Is My Faucet Pressure Low? It Might Be Your Aerator

Have you noticed low water pressure coming from just one faucet in your home? Before you assume it’s a bigger plumbing issue, there’s a quick and easy fix that many homeowners overlook: the faucet aerator.

What Is a Faucet Aerator?

The aerator is a small screen located at the tip of your faucet. Its job is to mix air with the water to reduce splashing and help the water flow evenly. Over time, this screen can become clogged with sediment, minerals, or debris, especially if you have hard water or older pipes.

When the aerator gets blocked, you’ll likely notice weak or uneven water flow, but only from that specific faucet.

How to Clean Your Faucet Aerator

Good news: you don’t need any plumbing experience to check or clean your aerator. It’s a simple DIY job. Here’s how to do it:

1. Cover the Drain

Place a rag or plug in your sink drain so you don’t accidentally lose any small parts.

2. Unscrew the Aerator

Turn the aerator counterclockwise to remove it from the faucet. If it’s stuck, use pliers, but be careful not to scratch the finish wrap the jaws with a cloth or use a rubber grip.

3. Clean It

You may see sediment, grime, or mineral deposits. Tap out any debris and rinse the screen under running water. For tough buildup, soak the parts in white vinegar for 10–15 minutes, then scrub gently with an old toothbrush.

4. Reattach It

Screw the aerator back onto the faucet and turn on the water to test. If the pressure is back to normal — you’ve solved the problem!

What If That Doesn't Work?

Sometimes the aerator is too clogged or damaged to clean. If that’s the case, just take it to your local hardware store and buy a replacement. They’re usually very affordable and easy to install.

However, if cleaning or replacing the aerator doesn’t fix the low pressure, or if you’re having the same issue at multiple fixtures, there may be a bigger issue. It could be a sign of a clog deeper in the plumbing or a problem with the main water supply. In that case, it’s best to call in a licensed plumber for a full inspection.

Pro Tip: No Need to Turn Off the Water

One great thing about cleaning a faucet aerator, you don’t have to shut off your water supply. That makes this one of the easiest plumbing fixes a homeowner can handle on their own.

Final Thoughts

If you’re dealing with low pressure in just one faucet, always check the aerator before jumping to bigger conclusions. It’s a simple, fast fix that can restore your water flow and save you from unnecessary service calls.

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Why Is My Plumbing Making That Noise? A Real-Life Fix from Charleston

Recently, we were called to a home in Charleston to solve a strange and persistent noise coming from the plumbing. The homeowner said it happened every time the toilet was flushed, but the source wasn’t obvious. After a little detective work, we discovered the issue wasn’t even inside the house. The culprit? A faulty vacuum breaker on an outdoor hose bib. It was causing vibration and noise throughout the plumbing system whenever water was used inside. Once we removed the bad vacuum breaker, the noise vanished.

While that was a less-common issue, noisy plumbing is a complaint we hear all the time, and it can stem from a variety of causes.

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Common Reasons Plumbing Makes Noise

• Water Hammer: A loud banging or thudding sound caused when water suddenly stops or changes direction. This often happens when valves close quickly.

• High Water Pressure: Excess pressure can make pipes rattle or whine.

• Loose Pipes: Pipes that aren’t properly secured may knock against framing when water flows through.

• Worn Out Washers: If you hear a screech or whine when turning on a faucet, it might be a worn washer inside the fixture.

• Air in the Pipes: This can create bubbling or gurgling noises, especially when turning on taps or flushing toilets.

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Simple Steps to Investigate or Reduce Plumbing Noise

• Identify when the noise happens – Does it occur with a specific fixture or during certain times of the day?

• Check for visible leaks or drips – Especially around outdoor spigots, toilets, or under sinks.

• Inspect hose bibs and vacuum breakers – As we saw in Charleston, these outdoor components can cause indoor noise.

• Lower water pressure – You can test your home’s pressure with a gauge and adjust it at the pressure regulator if it’s too high.

• Secure loose pipes – Especially in basements or crawlspaces, where they’re often visible and accessible.

If you’ve tried the basics and still can’t pin down the source, it might be time to bring in a pro.

Plumbing noises are often harmless—but they can also be early signs of bigger issues.

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