Black algae are hardy organisms that embed themselves into pool surfaces, making them resistant to normal chlorine levels and standard cleaning methods. If you’re wondering how to get rid of black algae in the pool, follow these steps to restore your pool to its clean, sparkling state.
Understanding Black Algae
Black algae are a type of cyanobacteria that form dark, slimy spots on pool vacuum surfaces, particularly in cracks and crevices. They have a protective outer layer that shields them from chlorine, making them more difficult to eliminate than other types of algae. Black algae also have deep roots that penetrate porous surfaces like concrete or plaster, which is why they require a more aggressive approach to remove.
Step 1: Brush the Affected Areas
The first step in how to get rid of black algae in the pool is to thoroughly brush the affected areas. Use a stiff-bristled brush designed for pool surfaces to scrub the algae spots. This helps break down the protective layer and exposes the algae to treatment. Be sure to brush aggressively, especially in corners, steps, and other hard-to-reach areas where black algae tend to thrive.
Step 2: Test and Balance the Pool Water
Before adding any chemicals, test your pool water to ensure the pH, alkalinity, and chlorine levels are balanced. The ideal pH level should be between 7.4 and 7.6, and the chlorine level should be between 1 and 3 ppm. Balanced water ensures that the chemicals you add will work effectively to kill the algae.
Step 3: Shock the Pool
Shocking the pool is a critical step in how to get rid of black algae in the pool. Use a high-quality pool shock product and follow the manufacturer’s instructions for dosage. For black algae, you may need to use a higher dose than usual. Distribute the shock evenly across the pool, focusing on the areas with algae growth. Run the pool pump for at least 24 hours to circulate the shock treatment thoroughly.
Step 4: Apply Algaecide
After shocking the pool, add a specialized black algae algaecide to the water. Look for a product specifically designed to target black algae, as these contain stronger chemicals that can penetrate the algae’s protective layer. Follow the instructions on the label for the correct dosage and application method.
Step 5: Brush and Vacuum Again
After allowing the shock and algaecide to work for 24-48 hours, brush the affected areas again to remove any remaining algae. Then, vacuum the pool to eliminate dead algae and debris. Be sure to clean or backwash your pool filter afterward to prevent the algae from returning.
Step 6: Prevent Future Growth
To prevent black algae from coming back, maintain proper pool chemistry and regularly brush and vacuum your pool. Keep chlorine levels consistent and consider using a preventative algaecide as part of your regular pool maintenance routine.
Summary
By following these steps on how to get rid of black algae in the pool, you can effectively eliminate this stubborn problem and enjoy a clean, algae-free swimming environment. Regular maintenance and prompt action are key to keeping black algae at bay.
