Common Types of Pool Algae and Tips for Removing Them

Common Types of Pool Algae and Tips for Removing Them

Common Types of Pool Algae and Tips for Removing Them


Are you struggling to keep your pool pristine and inviting? Algae growth is one of the most common yet frustrating issues for pool owners in Orlando, FL, and beyond. Left untreated, algae can turn your crystal-clear water into a murky green mess. But don’t worry—it’s a problem you can tackle with the right knowledge and tools.

This guide will help you identify the most common types of pool algae, learn why they grow, and discover effective strategies to remove and prevent them. Plus, if you’re short on time or need expert assistance, Pure & Simple Poolcare is here to make pool maintenance hassle-free.
 

What Causes Pool Algae?

Before jumping into the types of algae, it’s essential to understand why algae end up in your pool at all. Algae spores are always present in the air, and when given the right conditions, they can take over your pool in no time. Here are the key factors that contribute to algae proliferation:

  • Poor Water Circulation: Stagnant water is an open invitation for algae to thrive.
  • Imbalanced Pool Chemistry: Low chlorine levels or unbalanced pH can create a breeding ground for spores.
  • Warm Temperatures: Orlando’s sunny weather with warm, humid conditions provides the perfect environment for algae to grow.
  • Organic Debris: Leaves, dirt, and other debris introduce nutrients that feed algae growth.

Now that you know the triggers, identifying and dealing with algae becomes easier.
 

Common Types of Pool Algae

1. Green Algae

What It Looks Like: Green algae are the most common and recognizable type. It starts as unclear spots on pool walls and can quickly spread, turning your entire pool a cloudy green.

Why It’s Troubling: Though it’s not toxic, green algae create slippery surfaces and unsightly water. It’s common during the hot summer months in Florida.

How to Remove It:

  • Brush the pool walls and floors to loosen algae deposits.
  • Shock your pool with chlorine or a specialized algaecide.
  • Clean or backwash the pool filter to remove trapped algae.
  • Maintain proper chlorine levels and pH balance.

Prevention Tip: Ensure your pool pump is running at least 8 hours daily for better circulation.

2. Yellow Algae (Mustard Algae)

What It Looks Like: Yellow algae appear as yellow or mustard-colored spots along shady areas of your pool. They cling tightly to surfaces and often get mistaken for sand or pollen.

Why It’s Troubling: Tougher than green algae, yellow algae are resistant to typical chlorine levels. It’s also more likely to return if not treated thoroughly.

How to Remove It:

  • Use a pool brush designed for tough algae to scrub problem areas.
  • Apply shock treatments and focus on maintaining high chlorine levels for an extended period.
  • Use a high-quality algaecide suitable for mustard algae.

Prevention Tip: Avoid using pH levels above 7.8, as higher levels can reduce chlorine’s effectiveness.

3. Black Algae

What It Looks Like: Black algae appear as dark spots or patches, often on pool walls or in hard-to-reach areas like grout lines.

Why It’s Troubling: This algae type is extremely stubborn due to its protective outer layers. It can damage your pool surfaces if left untreated.

How to Remove It:

  • Use a stiff pool brush to scrub visibly affected areas aggressively.
  • Apply a chlorine tablet directly on the black algae spots for spot treatment.
  • Balance the pool’s phosphate levels, as black algae thrive on high phosphate content.

Prevention Tip: Clean your pool thoroughly, especially smaller crevices, to avoid spores from embedding themselves into the surface.

4. Pink Algae

What It Looks Like: Although technically not algae, pink slime appears as slimy, pink or red streaks near your pool walls or pipes.

Why It’s Troubling: Pink “algae” is actually a form of bacteria. It’s not harmful in small quantities but can create slippery surfaces and clog filters.

How to Remove It:

  • Scrub infested surfaces thoroughly with a pool brush.
  • Use a chlorine shock treatment designed for bacterial issues.
  • Keep the pool covered when not in use to reduce organic debris.

Prevention Tip: Inspect your pool equipment, as pink algae often hide in filters or pool toys.
 

General Tips for Algae Removal and Prevention

1. Maintain Pool Chemistry

Always keep your pool’s chlorine levels, pH, and alkalinity balanced. Test your water at least once a week (or more, during the hot Orlando summers) using pool testing kits. Aim for:

  • Chlorine levels of 1-3 ppm
  • A pH level of 7.2-7.6
  • Alkalinity between 80-120 ppm

2. Keep Your Pool Filter and Pump Running

A clean and well-maintained pool filter acts as the first line of defense against algae. Run the pump for 8-12 hours daily for proper water circulation, particularly after heavy pool usage or rainstorms.

3. Brush and Vacuum Regularly

Manually brushing your pool walls and floors, combined with frequent vacuuming, ensures no algae find a place to settle.

4. Use Pool Covers

When your pool isn’t in use, especially overnight, consider covering it to reduce exposure to algae spores and organic material.

5. Schedule Professional Cleaning

Busy lifestyle? Pool looking stubbornly green? Hiring professional services can save you time and effort. Pure & Simple Poolcare specializes in pool cleaning for homes across Orlando, FL, ensuring your pool stays clean and algae-free year-round.
 

Why Choose Pure & Simple Poolcare for Pool Cleaning in Orlando, FL?

When it comes to pool maintenance, trust matters. Here’s how Pure & Simple Poolcare can help Orlando homeowners keep their pools pristine:

  • Expertise You Can Rely On: With years of experience, our team knows how to handle algae outbreaks quickly and effectively.
  • Customized Treatments: We tailor our cleaning services to meet your pool’s specific needs.
  • Convenience: No need to spend hours scrubbing and testing. We’ll handle everything so you can relax!
  • Free Estimates: Unsure about professional cleaning? Contact us today for a free estimate.

Don’t settle for murky waters—experience the crystal-clear difference with Pure & Simple Poolcare.

 

Final Thoughts

Dealing with pool algae doesn’t have to feel like a full-time job. By understanding the common types of algae and following practical prevention strategies, you can keep your pool sparkling clean and ready for a swim.

If the task feels overwhelming or your algae issues persist, we’ve got you covered. For professional pool cleaning in Orlando, FL, get in touch with Pure & Simple Poolcare. Whether it’s routine maintenance or deep cleaning, we’ll ensure your pool becomes—and stays—a source of pride.