How to Fix Green or Cloudy Water in Your Pool Causes, Solutions, and Prevention
With the arrival of summer and high temperatures, pool owners often face a recurring problem: green or cloudy water. This phenomenon not only affects the aesthetics of the pool but can also indicate issues with maintenance and water health. In this article, we will explore the causes behind this problem, how to prevent it, and the most effective solutions to restore your pool’s crystal-clear clarity.

Why Does Pool Water Turn Green or Cloudy?
The main causes of pool water turning green or cloudy include:
Types of Algae in Pools and How to Identify Them
They are the most common and appear as green spots floating on the surface or attached to the walls and bottom of the pool.
They are the most common and appear as green spots floating on the surface or attached to the walls and bottom of the pool.
They are the most resistant and appear as dark spots on porous surfaces. They require more intensive treatments for removal.
Steps to Remove Algae and Restore Crystal-Clear Water
Brushing Surfaces
Before applying any chemical treatment, vigorously brush the walls and floor of the pool to loosen the attached algae.
pH Adjustment
Ensure the water’s pH is between 7.2 and 7.6. A balanced pH maximizes the effectiveness of chlorine and other disinfectants.
Shocking Treatment
Apply a high dose of chlorine (shock chlorination) to eliminate algae and bacteria. It is essential to follow the manufacturer’s instructions for proper dosing.
Continuous Filtration
Keep the filtration system running 24 hours a day until the water regains its clarity. Clean or backwash the filter as needed to ensure its efficiency.
Use of Algaecides
After the shock treatment, add an appropriate algaecide to prevent the reappearance of algae.
Bottom Cleaning
Use a pool vacuum to remove dead algae and other impurities deposited at the bottom of the pool.
Make your pool self-maintaining!
Prevention: Key to a Healthy Pool
Regular Maintenance
Conduct regular water tests to monitor pH, chlorine, and alkalinity levels, adjusting them as needed.
Regular Cleaning
Brush the walls and floor of the pool regularly to prevent the buildup of dirt and algae.
Efficient Filtration
Ensure that the filtration system is working properly and for the recommended amount of time daily.
Use of Covers
Consider using pool covers when not in use to reduce exposure to contaminants and direct sunlight, which limits algae growth.
Conclusion
Keeping your pool water clear and algae-free is essential for enjoying a safe and pleasant environment. By understanding the causes of green or cloudy water and following proper maintenance and prevention practices, you can ensure that your pool stays in perfect condition throughout the season.
For a detailed visual guide on how to remove Black algae from your pool, we recommend the following video:
Links You Might Be Interested In:
And if you want to dive deeper into this topic, we recommend checking out these two reference posts, where you’ll find more helpful tips and detailed explanations on how to treat green or cloudy pool water: