I found little white crystals growing on the pipes in my basement, and I can’t get anyone to inspect it right now. What is happening?

 

7. Viral Cleaning Hacks for Efflorescence: What Actually Works

Some cleaning hacks recommend vinegar or baking soda. Vinegar’s mild acidity can dissolve alkaline salts effectively, but it should be used carefully to avoid damaging surfaces.

Baking soda mixed with water can work as a gentle abrasive. For larger or stubborn areas, commercial efflorescence removers designed for masonry may be more effective.

8. Safe Ways to Remove Mineral Efflorescence From Pipes and Surfaces

Start by dry-brushing the area with a stiff (non-metal) brush to remove loose deposits. Follow with a mild acid rinse, such as diluted vinegar, to dissolve remaining residue.

Always wear gloves and eye protection. Avoid wire brushes on metal pipes, as they can scratch the surface and accelerate corrosion.

9. How to Reduce Basement Humidity and Stop the Crystals From Returning

Controlling moisture is key to preventing efflorescence. Use a dehumidifier to keep humidity below 60%, and ensure proper ventilation.

Outside, clean gutters and extend downspouts to direct water away from the foundation. Sealing basement walls and floors with waterproof coatings can also help block moisture intrusion.

10. When to Worry About Your Health and Indoor Air Quality

Efflorescence itself isn’t a health risk, but the moisture that causes it can encourage mold growth, which may affect indoor air quality—especially for people with respiratory sensitivities.

Musty odors, visible mold, or ongoing respiratory symptoms are signs that moisture control and ventilation should be addressed promptly.

11. When You Really Do Need a Plumber or Structural Professional

If you suspect a plumbing leak, notice significant water intrusion, or see structural cracks, it’s important to contact a professional—even if scheduling is difficult.

Unresolved leaks and foundation issues can worsen over time, leading to costly repairs and potential safety concerns. Addressing them early helps protect your home’s value and stability.