Have you walked into your backyard expecting to see your pristine blue pool, only to find it looking more like a swamp? A green pool isn't just unsightly—it can also be a breeding ground for harmful bacteria and algae. But don’t worry! Understanding the common causes of a green pool and how to fix them is the first step in restoring your pool's sparkle.
If you're a pool owner in Winter Park, FL, keep reading to learn why your pool might be turning green, what you can do to fix it, and when you should call a professional pool service for help.
A green pool is usually a sign that something’s off with your pool's water quality. Here are the key culprits:
One of the most common reasons for a green pool is algae overgrowth. Algae thrive in warm, stagnant water, especially when there’s a lack of proper sanitization. If your pool's chlorine levels drop too low, algae can quickly take over, covering your pool walls and turning the water green.
How to Fix It:
Shock your pool with a high dose of chlorine to kill off the algae. Brush the walls and floor to dislodge any algae buildup, then run your filter continuously until the water clears up.
Maintaining the right balance of chemicals is crucial for pool health. Low chlorine levels, incorrect pH, or improper alkalinity can cause the water to go green. High pH, in particular, reduces the efficacy of chlorine, giving algae the opportunity to spread.
How to Fix It:
Test your pool’s water using a reliable test kit. Adjust the pH and alkalinity to ideal levels (pH between 7.2–7.6 and total alkalinity between 80–120 ppm), then bring chlorine levels up to the recommended range.
Even if your chemical levels are perfect, a poorly functioning pool filtration system can contribute to green water. A compromised filter won’t circulate water properly or trap contaminants as effectively, creating an ideal environment for algae.
How to Fix It:
Inspect your filter for clogs or damage. Backwash sand and DE filters regularly. If the filter is too worn or outdated, you may need to replace it.
Rainwater and debris like leaves can introduce contaminants that disrupt your pool's chemical balance. Rain typically dilutes chlorine levels, while fallen debris can decay in the water, creating nutrients that algae love.
How to Fix It:
After heavy rains or debris accumulation, remove organic matter from the pool using a skimmer or net. Test and adjust your chemical levels as needed to restore balance.
High levels of certain metals, like copper or iron, in your pool water can also cause discoloration. When these metals react with chlorine, they can turn the water green—or even other colors, like yellow or brown.
How to Fix It:
Use a metal sequestrant to bind the metals in the water and remove them. If you're filling your pool with well water or water that’s high in metals, consider installing a pre-filter.
Now that you know what can turn your pool green, here are some strategies to keep it clear and healthy year-round.
Keep your chlorine levels within the ideal range (1–3 ppm) at all times. If you’re not sure how to monitor this, a pool service can make maintaining your pool much easier.
Skim, vacuum, and brush your pool frequently to remove debris and prevent algae buildup. Even small actions like clearing out your skimmer basket regularly can make a big difference.
Run your pool filter for at least 8–12 hours a day to ensure your water stays clean and well-circulated. Don’t forget to perform routine maintenance, such as backwashing your filter or cleaning the cartridges.
Testing your pool water at least once a week helps you spot and resolve imbalances before they turn into bigger problems. Home test kits and pool stores make this simple, but professional weekly pool service in Winter Park, FL can help ensure absolute precision.
After heavy rain, immediately remove debris and test your chemical levels. Shocking the pool after a downpour is often a great preventive measure.
Despite your best efforts, some green pools require expert intervention. If you’ve tried shocking your pool, balancing your chemicals, and running the filter continuously with no success, it may be time to call in the pros.
Professional pool services offer:
For residents in Winter Park, FL, Pure & Simple Poolcare is standing by to help keep your pool in perfect shape! With years of expertise and a commitment to top-notch service, we’re well-equipped to handle everything from green pools to routine maintenance.
A green pool doesn’t have to ruin your summer—or your relaxing weekends in Winter Park, FL. By understanding the causes of green water and taking quick action, you can ensure a clean, inviting pool for family and friends.
And remember, if tackling a green pool feels overwhelming, don’t hesitate to seek professional help. At Pure & Simple Poolcare, we make pool maintenance stress-free with expert solutions tailored to your needs.
Contact us today for a free estimate and discover the difference professional pool service can make.