What to Do If Black Spots Persist After Using a RemoverUpdated 24 days ago

Black spot algae can be incredibly stubborn, particularly in warmer months, and often requires persistence to fully eliminate. Here’s how you can tackle it effectively:

Steps for Treating Black Spot Algae

1. Understand the Nature of Black Spot Algae

   • Black spot algae have a strong protective layer, making it resistant to single treatments. Multiple applications are often needed to break it down completely.

2. Timing of Treatment

   • Consider treating the algae during winter months, as cooler water temperatures slow its growth and make it easier to combat.

3. Brush and Reapply

   • Continuously brush the affected areas to break the algae’s protective layer.
   • Reapply the black spot remover as needed for better penetration and effectiveness.

4. Vacuum Loose Algae

   • After brushing, vacuum any loose algae to waste. This helps prevent regrowth.

5. Maintain Proper pH Levels

   • Ensure your pool’s pH is between 7.2–7.6. Lower pH levels enhance the effectiveness of the black spot remover.

6. For Wall Applications

   • Apply the remover using a sock directly to the black spots. This localized approach can target and weaken stubborn algae spots more efficiently.

Persistence is Key

Black spot removal is a process that may require patience and repeated effort. By following these steps, you can gradually eliminate the algae and restore your pool to pristine condition.

Remember, Black Spot Algae is persistent, and the only way to beat it is to be more persistent than them!