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What Is the White Buildup on My Faucet?

If you notice a white, chalky residue on your faucets, you may be wondering what causes it. Not only is it visually unattractive, but it can affect the faucet’s performance, its lifespan, and your water flow. Ultimately, it can necessitate replacement.

Knowing the causes of the buildup can extend your faucet life and reduce or eliminate the need for expensive and inconvenient repairs and replacements.

Quick Takeaways

  • White limescale buildup on bathroom faucet The white buildup that accumulates on faucets is usually magnesium and limescale, and is caused by an accumulation of these and other minerals found in hard-water areas. The faucet gets wet, the water evaporates, and it leaves behind a mineral residue.
  • Mineral deposits that are formed when the water evaporates are responsible for the white buildup on faucets. It’s called limescale; it forms when water evaporates, and it’s comprised of calcium and magnesium. This is especially prevalent in hard water areas. Limescale can clog aerators, reduce water pressure, and make faucet handles harder to turn.
  • Often, soaking and scrubbing with vinegar can remove minor existing deposits, but it won’t prevent future buildup.
  • If your faucets continue to develop a mineral buildup, you may have a hard water problem that can benefit from a filter.
  • Alternatively, you may need professional faucet repair to prevent damage to your faucet components.

What Causes White Buildup on Faucets?

Hard water contains high concentrations of minerals, and the most common are magnesium and calcium, although hard water can also contain chalk, gypsum, and limestone. Soft water has had these minerals removed, so limescale isn’t usually an issue in soft water.

The white, crusty substance that remains when water evaporates can restrict water flow, whether it accumulates on the inside or the outside of the faucet. It can also make the faucet handles harder to turn. Since calcium and magnesium are abundant in most local water supplies, they’re the most common causes of hard-water buildup.

Since minerals cannot evaporate, whenever a faucet gets water on it, the water evaporates, and the minerals remain. Over time, the remaining minerals accumulate and cause a hard-water buildup.

Both kitchen and bathroom faucets often get wet, so they frequently accumulate a buildup. Once the water evaporates, the minerals remain and can cause problems in both the kitchen and the bathroom.

Are There Signs That Mineral Buildup Is Affecting A Faucet?

If you notice any or all of the following, then mineral buildup may be adversely affecting your faucet performance:

  • Difficulty turning faucet handles
  • Faucet sputtering
  • Reduced water pressure
  • Uneven water spray
  • Visible white crust around the spout or handles

Can Mineral Buildup Damage a Faucet?

Plumber removing stuck aeratorYes, mineral buildup in faucets can damage them, reduce their effectiveness, and shorten their lifespan. Signs and results of a buildup can include:

  • Clogged aerators
  • Increased wear on internal components and cartridges
  • Reduced water flow
  • Shortened faucet lifespan

How Should I Remove White Buildup From a Faucet?

Follow the steps below to clean a mineral residue from a faucet:

Clean the Faucet Surface

The best way to clean a faucet surface is with a vinegar soak. Don’t use water because that’s counterproductive. Use a soft cloth and avoid abrasive cleaners. Use distilled white vinegar rather than apple cider vinegar so you don’t attract insects due to ACV’s sticky residue.

Clean the Faucet Aerator

Remove the aerator, soak it in white vinegar, then reinstall it and test the water flow. For stubborn buildup, you may need to repeat the process until the residue is gone.

How Do I Prevent Mineral Buildup From Coming Back?

If you have a problem with recurring mineral buildup, try the following steps:

  • Regular cleaning
  • Wipe fixtures dry after using them
  • Determine whether you’d profit from the benefits of a water treatment system

When Does A White Buildup Mean The Faucet Needs Ro Be Repaired?

If you notice the following, especially if your faucet has a buildup, your faucet may need to be repaired:

  • Corroded components
  • Damaged aerators
  • Persistent low water pressure
  • Recurring performance issues despite cleaning
  • Worn faucet cartridges

FAQ

What is the white buildup on my faucet?

If your faucet has a white substance around the base, it may be mineral buildup. This is especially common in areas with hard water.

Is faucet mineral buildup harmful?

Yes, mineral buildup can adversely affect the appearance, function, and lifespan of your faucet. It should be removed without delay.

Can hard water cause low water pressure?

Although hard water itself doesn’t cause low pressure, it can leave mineral deposits on your appliances and faucets, which can impede their function and reduce water flow.

Does vinegar remove calcium buildup from faucets?

White vinegar is acidic, so it can dissolve the mineral buildup on your faucets and appliances. You should use white vinegar rather than cider vinegar, as cider vinegar can leave a sticky residue. Use a soft cloth and avoid harsh cleaning agents.

Why does white buildup keep coming back?

The buildup keeps recurring because hard water naturally contains minerals. The solution options are either a whole-house water filtration system or drying the faucets whenever they get wet.

When should I call a plumber for faucet problems?

So you’ve tried all the above and still have faucet problems. When hard water starts winning the battle, our punctual plumbers help put your faucet back in fighting shape.

Still Having Faucet Problems?

Benjamin Franklin Plumbing Mascot LogoStill have faucet problems? Then call a plumber, such as Benjamin Franklin Plumbing, servicing Niceville, FL, and the surrounding areas. Mineral buildup can do more than make faucets look dirty—it can affect their performance and shorten fixture life.

Remember, recurring mineral buildup can cause bigger and more expensive problems, so don’t ignore it. Address recurring buildups without delay.

Call us today to schedule an appointment with one of our punctual plumbers for expert faucet repairs.

Remember, when hard water starts winning the battle, our punctual plumbers help put your faucet back in fighting shape.” We’re among the best in the area, and we’re sure you’ll be happy with our service. Call us today! We look forward to speaking with you.