Green pool water is typically caused by algae growth, which thrives when sanitizer levels drop, circulation is poor, or phosphates build up. Warm weather and sunlight accelerate the problem.
Recovery usually involves diagnosing the cause, balancing chemistry, applying targeted treatment, cleaning surfaces, and optimizing filtration. Most green pools can be cleared without draining.
Preventing recurrence means maintaining consistent sanitizer levels, regular brushing, and clean filters. A weekly maintenance plan is the most reliable way to keep green water from returning.
