Why Is My Faucet Sputtering? Explained

A sputtering faucet is often caused by air in the water lines, a clogged aerator, low water pressure, sediment in the water heater, or a plumbing issue. Some causes are easy to fix yourself, while ongoing sputtering may signal that your plumbing system needs professional attention.

When you turn on a faucet, you expect a steady stream of water. If the faucet spits, sputters, or sends out an uneven stream instead, something is disrupting the normal water flow.

The good news is that a sputtering faucet does not always mean you have a major plumbing problem. Start with a few common causes before assuming the worst.

Why Is My Faucet Sputtering?

A sputtering faucet can have several causes. Before you start troubleshooting, note when the problem happens, which faucets are affected, and whether it occurs with hot water, cold water, or both.

Air in the Water Lines

Air trapped in your water lines is a common cause of a sputtering faucet.

This often happens after you shut off the water supply for plumbing repairs or maintenance. When you turn the water back on, pockets of air can remain in the pipes. As water pushes that air toward the faucet, the flow may spit or sputter.

Trapped air may be the cause if:

• Your water was recently shut off and turned back on
• The sputtering started suddenly after plumbing work
• The flow becomes steadier after the faucet runs for a while

In many cases, letting the water run is enough to clear the trapped air.

A Clogged Faucet Aerator

If only one faucet is sputtering, check the aerator.

The aerator is the small screen at the end of the faucet. Minerals and debris can collect inside it over time, restricting water flow and creating an uneven stream.

Signs of a clogged aerator can include:

• Sputtering from one faucet
• Water spraying in different directions
• A weaker stream than usual
• Visible mineral buildup around the faucet opening

Remove the aerator and clean away any debris or mineral deposits. If it is damaged or heavily clogged, replacing it may be the easiest solution.

Water Heater Problems

If your faucet sputters when you use hot water but runs normally with cold water, your water heater may be involved.

Sediment and mineral deposits can collect inside a water heater over time. That buildup can affect the system’s performance and interfere with normal hot water delivery.

A water heater issue may be worth checking if:

• Sputtering happens only with hot water
• More than one hot water faucet is affected
• Your hot water flow has become inconsistent

A plumber can inspect the water heater and determine whether sediment buildup or another issue is causing it.

Low Water Pressure

Low or inconsistent water pressure can also cause faucets to sputter.

Your plumbing system needs enough pressure to maintain a steady flow. If the pressure drops or fluctuates, you may notice changes at faucets and other fixtures throughout the home.

Possible signs of a water pressure problem include:

• Several faucets have weak flow
• Water pressure changes while a faucet is running
• More than one fixture sputters
• The problem is not limited to hot or cold water

If the issue affects several fixtures, a plumber can check your home’s water pressure and pressure regulator.

Problems With Your Plumbing Pipes

Sometimes the faucet itself is working fine and the problem is farther back in the plumbing system.

Older or deteriorating pipes can interfere with water flow. Pipe problems become more likely when sputtering continues after you have ruled out simple causes such as trapped air or a clogged aerator.

Consider having the plumbing inspected if:

• Multiple faucets are sputtering
• The problem keeps returning
• Cleaning the aerator does not help
• Water pressure is inconsistent throughout the home

A plumber can inspect the system and determine whether your pipes are contributing to the problem.

How Do You Fix a Sputtering Faucet?

Start with the easiest fixes and use what you observe to narrow down the cause.

1. Let the Water Run

If the sputtering started after you shut off the water, turn on the faucet and let it run for a few minutes.

The stream may sputter at first and gradually become steady as trapped air leaves the line. If the problem disappears and does not return, trapped air was likely the cause.

2. Clean the Faucet Aerator

If only one faucet is having trouble:

• Remove the aerator from the end of the faucet
• Check it for debris and mineral buildup
• Clean the screen and other aerator components
• Reinstall it and test the faucet
• Replace the aerator if it is damaged or badly clogged

If the water flows normally afterward, the aerator was likely restricting the flow.

3. Compare the Hot and Cold Water

Run the cold water first, then test the hot water.

If the cold water runs normally but the hot water sputters, the issue may be connected to your water heater. If both hot and cold water sputter, look for another cause.

4. Check Other Faucets

Try faucets in different parts of your home.

If only one faucet sputters, start with that fixture and its aerator. If several faucets have the same problem, the cause may involve:

• Water pressure
• The water heater, if only hot water is affected
• Air in the plumbing lines
• A larger plumbing or pipe problem

This simple check can help you tell the difference between a fixture problem and a whole-home plumbing issue.

When Should You Call a Plumber for a Sputtering Faucet?

A little sputtering after you shut off the water may clear up on its own. If the problem continues or keeps returning, it deserves a closer look.

Consider calling a plumber if:

• Several faucets are sputtering
• The problem keeps coming back
• Cleaning the aerator does not fix it
• Your water pressure is weak or inconsistent
• Only the hot water sputters
• You suspect a problem with your water heater or pipes

A plumber can check the water pressure, water heater, pipes, and fixtures to find the source of the problem instead of relying on guesswork.

Get Help With a Sputtering Faucet From Blanton’s

A sputtering faucet can be something as simple as trapped air or a dirty aerator. It can also point to a problem with your water pressure, water heater, or plumbing pipes.

If you’ve tried the simple fixes and your faucet is still sputtering, Blanton’s can help. Our plumbing professionals can inspect your system, find the source of the problem, and recommend the right repair.

Contact Blanton’s to schedule plumbing service and get your water flowing normally again.