Why Is My Pool Green? Causes and Fixes for Thousand Oaks Pools
Few things are as frustrating as pulling back the cover or looking out the window and seeing green water. The good news is that a green pool is almost always fixable. The color comes from algae, tiny plant life that grows quickly when the water loses its sanitizer or stops moving.
Understanding why it happened is the first step to clearing it and keeping it from coming back.
Common Causes of Green Pool Water
Low chlorine. Chlorine keeps algae in check. When levels drop, even for a few days, algae can bloom. Heavy swimmer use, rain and strong sun all burn through chlorine faster than many owners expect.
Summer heat. Thousand Oaks summers bring long, hot afternoons. Warm water speeds up algae growth, and sunlight breaks down chlorine that is not protected by stabilizer.
Poor circulation and filtration. Algae gathers in corners, steps and behind ladders where water does not move. A clogged filter or a pump that runs too few hours makes the problem worse.
Debris. Leaves, dust and pollen carried in by wind add nutrients to the water and use up chlorine. After a windy stretch, pools across the Conejo Valley can turn cloudy and then green.
How a Green Pool Is Cleared
Clearing a green pool takes several steps done in the right order. Debris is removed first, then the walls and floor are brushed to loosen algae. The water is tested and treated to bring sanitizer up to a level that kills the bloom, while the pump and filter run to capture dead algae.
The filter usually needs cleaning more than once during the process, because it fills quickly with debris. Once the water clears, the chemistry is balanced so the pool stays clear. Our green pool cleanup service handles every one of these steps at your home.
Keeping Algae From Coming Back
Steady care is the best defense. Test the water at least once a week, keep the pump running long enough each day to turn over the full volume of water, and clean the filter when the pressure rises. Brushing the walls and steps every week stops algae before it can settle in.
Regular pool chemical balancing and pool filter cleaning keep the conditions that cause algae from building up in the first place.
When to Call for Help
If the water is dark green, you cannot see the floor, or the pool turns green again soon after treatment, it is time for professional help. A pool that sits green for weeks can stain plaster and strain the equipment. Our mobile team comes to your home anywhere in Thousand Oaks to get the water clear again. You can also browse all of our pool services.