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Why Does My Faucet Sputter When I Turn It On? (Air in the Lines Explained) - Plumbing Services LLC

By Expert at Plumbing Services LLC 1/16/2026
A sputtering faucet can be frustrating and puzzling, but the explanation is often simpler than you think. Air entering the water supply lines is a common cause, and can be due to issues such as loose connections, cracks in the pipes, or problems with the water supply itself. At Plumbing Services LLC in New York, we're here to help with all your plumbing needs, from faucet repairs to basement waterproofing plumbing and backflow prevention installation. Call us today at (866) 203 8438 to schedule your appointment and get your plumbing system running smoothly.

If you've ever turned on your faucet and been greeted by a sputtering stream of water, you're not alone. This common issue can be frustrating and puzzling, but the explanation is often simpler than you think. In this article, we'll explore the reasons behind a sputtering faucet, with a focus on the role of air in the lines.

What Causes a Faucet to Sputter?

A sputtering faucet is usually caused by air entering the water supply lines. This can happen for a variety of reasons, including basement waterproofing plumbing issues, recent plumbing work, or problems with the water supply itself. When air enters the lines, it can cause the water to flow unevenly, resulting in a sputtering or stuttering effect.

Air in the Lines: How Does it Happen?

Air can enter the water supply lines through a number of means, including:

  • Loose or faulty connections
  • Cracks or damage to the pipes
  • Recent plumbing work or repairs
  • Issues with the water supply itself, such as low pressure or a faulty pump

In some cases, air in the lines can be a sign of a more serious issue, such as a backflow prevention installation problem or a issue with your sprinkler system plumbing. If you're experiencing persistent or severe sputtering, it's a good idea to have a professional plumber take a look.

How to Fix a Sputtering Faucet

Fortunately, fixing a sputtering faucet is often a relatively simple process. Here are a few steps you can take:

  • Check the faucet's aerator for blockages or debris
  • Inspect the water supply lines for signs of damage or leaks
  • Check the water pressure to ensure it's within a normal range
  • Consider installing a sump pump repair or other device to help regulate water pressure

If you're not comfortable with DIY repairs or if the issue persists after trying these steps, it's a good idea to call a professional plumber. At Plumbing Services LLC in New Dorp, we're here to help with all your plumbing needs, from propane gas line services to faucet repairs.

For more information on plumbing topics, be sure to check out our other articles, such as What Is a Check Valve and Why Does Your Sump Pump Need One? and The Dangers of DIY Gas Line Repair: Why It’s Never Worth the Risk. You can also learn more about hidden culprits behind high water bills.

Don't let a sputtering faucet drive you crazy - call Plumbing Services LLC today at (866) 203 8438 to schedule your appointment and get your plumbing system running smoothly.

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