Water & Sewer

3 Big Causes of Low Water Pressure in Kitchen Sinks

Low water pressure in kitchen sinks is frustrating. It can be one of the lousiest things to deal with in a home. It’s also quite closely related to some of the most common plumbing service calls we get.

While there can be differences between whole-house water pressure problems and more isolated issues, the focus of this post is on diagnosing low water pressure in kitchen sinks specifically. So what causes low water pressure in your kitchen and what exactly can you do about it?

The beauty of this Brazilian waterfall defies explanation, but I can tell you what causes low water pressure! 

There are 3 big causes of low water pressure in kitchen sinks:

  • Water Service Problems
  • Bad Piping
  • Broken Fixtures

Low water pressure in kitchen sinks is not the end of the world. Let’s look at what could be the issue, and help you decide on how to proceed.


Water Service Problems

If you have a problem with your water service, chances are you’ve noticed more problems around the house than just your kitchen sink pressure. But major connection issues can have a serious impact on your ability to soak the dishes in the ol’ kitchen sink.

However, it’s probably worth ruling out a couple other possibilities first.

Bad Piping

You know that most of us get better with age, right? From distinguished grey hair to all the insights and wisdom we gather over our many trips around the sun, there’s just no question that age brings beauty.

Pipes aren’t like that.

If the piping in a house is old, it can lead to low water pressure in the kitchen sink. When your water supply fights its way through, only to drip weak drops onto the colander you’ve filled with blueberries, your pipes may be to blame. When a home’s pipes become clogged over the years, it’s time for us to muster all that wisdom inside us and call the plumber!

Broken Fixtures

When we find low water pressure in kitchen sinks, and it’s definitely not happening anywhere else in the home, that probably means it’s time to think about faucet repairs. The good news is this: there’s a fair to decent chance that the issue is with the aerator.

Like I said, that’s good news… because aerators are a breeze to fix!

Now, the last thing I’d ever ever ever do is refer to my sweet readers as “dummies.” However… it just so happens that the folks over at Dummies.com made a great video on how to unclog an aerator, should you want to learn more about cleaning a faucet aerator.

If you don’t have luck unclogging the aerator, it may be broken or damaged. But as you already probably guessed (again, y’all are some smart cookies), this is a cheap replacement part that shouldn’t run you more than $10 and the gas to and from Lowes.


Don’t sweat it if you start to notice your water pressure going down in the kitchen. If the pressure drop is isolated to your kitchen sink, there’s a good chance you’ll be looking at a simple fix!

If you have any questions or concerns about this subject or any of your other plumbing needs, be sure to let us know!

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A plumber working on the pipes on the underside of a bathroom sink.

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A plumber working on the pipes on the underside of a bathroom sink.