Have you noticed a decreased water pressure or an uneven spray from your faucets? The culprit might be a white build-up on your faucet aerators. This chalky deposit, typically calcium carbonate, is common in areas with hard water.
But don’t worry! With this guide, you’ll learn how to remove White Build-Up on Faucet Aerators and get your faucets flowing smoothly again.
What is the White stuff on my Kitchen Faucet?
The white stuff on your kitchen faucet is likely calcium buildup, known as limescale. This occurs when water with high mineral content (hard water) evaporates, leaving calcium and magnesium deposits.
What Causes White Build-Up on Faucet Aerators?
Before we dive into the cleaning process, let’s understand what we’re dealing with. The white build-up on your faucet aerators is usually caused by:
- Hard Water: Water with high mineral content, particularly calcium and magnesium.
- Mineral Deposits: These accumulate over time as water evaporates, leaving behind mineral residue.
- Limescale: A chalky deposit consisting mainly of calcium carbonate.
For more information on hard water and its effects, check out this article from the U.S. Geological Survey.
Step-by-Step Guide to Removing White Build-Up
What You’ll Need:
- Adjustable pliers or a wrench
- White vinegar
- An old toothbrush
- A small plastic bag
- A rubber band
- Clean cloth
Steps:
Remove the Aerator:
- Unscrew the aerator from the faucet. You may need pliers, but be gentle to avoid damage.
- If it’s stuck, wrap a cloth around it before using pliers to protect the finish.
Soak the Aerator:
- Place the aerator in a small plastic bag filled with white vinegar.
- Secure the bag to the faucet with a rubber band, submerging the aerator.
- Let it soak for several hours or overnight.
Scrub the Aerator:
- After soaking, remove the aerator and scrub it gently with an old toothbrush.
- Pay special attention to the mesh screen and small holes.
Rinse Thoroughly:
- Rinse the aerator under running water to remove all vinegar and loosened deposits.
Reassemble and Test:
- Screw the aerator back onto the faucet.
- Turn on the water to check for improved flow and spray pattern.
For a visual guide, this video from Family Handyman provides excellent step-by-step instructions.
Comparison of Cleaning Methods

While vinegar is a popular and effective method, there are other ways to clean faucet aerators. Here’s a comparison:
Method | Effectiveness | Eco-Friendly | Cost | Time Required |
---|---|---|---|---|
Vinegar Soak | High | Yes | Low | 2-8 hours |
Commercial Limescale Remover | High | No | Medium | 15-30 minutes |
Baking Soda Paste | Medium | Yes | Low | 30-60 minutes |
Lemon Juice Soak | Medium | Yes | Low | 2-4 hours |
Preventive Measures to Stop White Build-Up
To reduce future build-up on your faucet aerators:
- Regular Cleaning: Clean your aerators every few months.
- Water Softener: Consider installing a water softener system.
- Wipe Down Faucets: After use, wipe faucets dry to prevent mineral deposits.
- Filtered Water: Use a water filtration system to reduce mineral content.

For more tips on maintaining your plumbing, check out this guide from The Spruce.
Conclusion
Removing white build-up from your faucet aerators is a simple task, that can significantly improve your water flow and faucet performance. Regular maintenance can prevent severe build-up and extend the life of your faucets or taps in the bathroom & kitchens.
With these steps and tips, you’re ready to tackle this common household issue and enjoy clean, smooth-flowing water from your faucets.
Remember, if you’re uncomfortable performing these steps or if you encounter any issues, it’s always best to consult a professional plumber. Happy cleaning!
FAQ’s
Is calcium buildup on the faucet harmful?
Deposition of calcium leads to the formation of a rugged surface on a given faucet and this has no health implications but rather it interferes with water output and progressively degrades the faucet.
How do you remove calcium from an aerator?
Again, if you need to clean calcium from an aerator, soak it in vinegar for approximately 30 minutes and then cleanse it with a brush. Wash it down with water and replace it where it used to be.
How do I get rid of white buildup on my faucet?
To clean the white formations (calcium) on the faucet use cloth or paper moistened in vinegar to cover the formation. It becomes perfect for 30 minutes to an hour after which you use a brush or sponge to clean it. Rinse with water and dry it. (If the build-up is intense let it sit in a warm place for a night)