The Hidden Dangers of Black Algae in Your Pool – What Every Pool Owner Needs to Know
If you’ve searched for “pool service near me” lately, chances are your pool may be showing signs of trouble — and black algae could be the culprit. Black algae is more than just an ugly stain on your pool walls. It’s a serious issue that can lead to costly repairs, unsafe swimming conditions, and ongoing maintenance headaches.
What Is Black Algae?
Black algae is a type of cyanobacteria that thrives in warm, sunlit swimming pools, especially those with porous surfaces like plaster or concrete. Unlike green algae, black algae form dark, stubborn spots that root deep into the pool’s surface. These spots are notoriously difficult to remove and often resist normal cleaning and chlorination.
Health Risks of Black Algae in Pools
One of the most dangerous aspects of black algae is that it can harbor harmful bacteria, including E. coli. This creates potential health risks for swimmers, especially children or those with weakened immune systems. Exposure to contaminated water can lead to skin infections, earaches, or gastrointestinal illness if the water is accidentally swallowed.
If you’ve noticed black spots on your pool walls or floor, don’t ignore them — search for a trusted swimming pool service near me to inspect and treat the issue before it becomes worse.
Why Black Algae Is So Hard to Remove
Black algae has a thick, protective outer layer and deep roots that embed into the plaster or tile grout. Even if the surface layer is scrubbed away, the organism often regrows unless properly treated. This makes black algae especially dangerous because it tricks homeowners into thinking the problem is gone — only to return days or weeks later.
Damage to Pool Surfaces and Equipment
Over time, untreated black algae can lead to permanent staining of your pool’s surface. In extreme cases, it may require resurfacing or professional acid washing. It can also contribute to clogged filters, reduced circulation, and increased chemical use, all of which drive up your maintenance costs.
To avoid costly repairs, it’s best to schedule regular maintenance with a licensed pool cleaning service near me that knows how to identify and eliminate algae growth early.
How to Get Rid of Black Algae
Eradicating black algae requires more than just brushing or shocking the pool. It typically involves:
Thorough brushing with a steel-bristled brush
Targeted use of algaecide specifically for black algae
Multiple rounds of chlorine shock
Cleaning or replacing filters
Professional help from an experienced pool service company near me
Don’t Let Black Algae Take Over Your Pool
If you’ve noticed black spots or are dealing with cloudy water, it’s time to act fast. Ignoring the signs could lead to serious health risks and thousands of dollars in repairs. For safe, clean water and peace of mind, contact a certified pool technician or search for the best pool service near me to schedule a full inspection.
Your pool should be a place to relax — not a breeding ground for bacteria. Take action today, and protect your backyard investment.