Even with proper pool maintenance, algae can sometimes take over the water. These microorganisms can turn your pool into a green pool in no time. A clogged filter, neglecting water treatment, or a chemical imbalance may be enough to trigger their appearance. If your pool is green, don't panic: understanding the causes and taking the right steps will help you restore clear water quickly. Removing algae requires a little diligence... and some knowledge of biology!
Recommended products for treating a green pool
These products can complement the treatment steps described in this guide, depending on the condition of the water, the filtration, and the amount of algae present.
Dazzle Premium Algae Removal Kit
A complete solution designed to treat algae problems in pools of up to 80,000 L.
Jack’s Magic Super Pacs
An enzymatic treatment that helps restore clearer water after dead algae have been removed.
Dazzle Filter Enhance
A filtration enhancer that helps the filter retain fine particles in the water more effectively.
Frequently asked questions about a green pool
Why does my pool turn green even though it contains chlorine?
Green water can appear when the disinfectant level is insufficient for the organic load, when the pH is unbalanced, or when filtration and circulation are not effective enough.
How long does it take to restore clear water?
The time required depends on the amount of algae, the quality of the filtration, and the water balance. Visible improvement may appear quickly, but complete clarification can take several days.
Do I need to drain my pool if the water is green?
In most cases, no. Good circulation, mechanical cleaning, appropriate treatment, and effective filtration generally make it possible to restore the water without draining the pool.
Ready to eliminate algae from your pool? Perfect, let’s get started!
The Dazzle method is a simple, fast, and highly effective algae treatment. Designed to solve green pool problems in a single application, it requires neither draining nor intensive effort. Apply the right Dazzle products, let them work, and see the results: clear water without waste or hard work!
Table of contents
1. Run your pump continuously
Throughout the algae treatment, it is essential that the pool pump runs 24 hours a day. This prevents the water from stagnating and promotes optimal circulation, which is essential for eliminating algae effectively. When reinstalling the return fittings, avoid tightening them too much. Point the nozzles downward at a 45° angle, creating a circular motion (all to the right or left). This setup maximizes water circulation and allows for easy adjustments throughout the season.
2. Remove all floating debris
Before applying an algae treatment, it is important to clean the pool by removing as much floating debris as possible. Use a net to remove leaves, visible algae, and any other residue from the water’s surface. The less organic matter there is, the more effective the treatment will be. Whether you use a net, your hands, or even get a little help from the children, the important thing is to clear impurities from the pool before moving on to the next step.
3. Brush your pool thoroughly
Brushing the pool is an essential step to eliminate algae and prevent them from returning. Carefully brush all surfaces: the walls, corners, steps, bottom of the pool, and even under the ladders. This mechanical cleaning helps remove algae attached to the walls and improves the treatment’s effectiveness. A well-brushed pool means healthier water and easier maintenance.
4. Vacuum manually for a deep clean
After brushing, use a manual pool vacuum to remove all debris and loose algae. Focus on strategic areas such as along the walls, under the stairs, and on the steps. Although a pool cleaning robot is convenient for everyday use, it is often less effective against stubborn algae. For a deep pool cleaning, nothing beats the effectiveness of a thorough manual vacuuming.
5. Clean your filtration system
Effective filtration is crucial for removing dead algae after treatment. If you have a sand filter (or glass/stone filter), perform a backwash to thoroughly rinse the filter media. For a cartridge filter, remove the cartridges and clean them thoroughly using a powerful stream of water or a pressure washer. A clean filter maximizes water circulation and prevents residual algae from returning.
6. Balance your water for optimal treatment
Before adding any products, test and adjust your pool water balance, paying particular attention to pH, ideally between 7.4 and 7.6. Properly balanced water allows pool treatments (algaecides, chlorine, etc.) to work optimally. Without good chemical balance, even the best products will be less effective.
7. Apply a powerful shock treatment against algae
Add Dazzle Ultra Shock, a highly effective pool shock treatment designed to quickly eliminate algae and contaminants. For optimal results, slowly pour it into a clean, empty skimmer. Then wait 15 minutes and apply Algae Clear 60, a powerful algaecide that complements the shock treatment by targeting any remaining active algae.
Add Dazzle Algae Clear 60 for maximum algae-fighting action
Finish your treatment by pouring Dazzle Algae Clear 60 directly along the pool edges, our most powerful all-purpose algaecide. This product effectively targets stubborn algae, complements the shock treatment, and helps quickly restore clear, healthy water, even after a green pool episode.
Important: one treatment is not always enough
Not all algae problems in the pool disappear after a single application. Several factors influence the effectiveness of the algae treatment:
The age of the infestation
The resistance of the algae strain
Problems with filtration, water circulation, or contamination by phosphates, nitrates, ammonia or pollen
If your pool water remains green or shows no visible improvement after 48 hours, contact a technician at Piscine Hippocampe. A second dose of Dazzle Ultra Shock may be necessary to completely eliminate the algae.
When the green color disappears, it is common for the water to become cloudy. Don’t worry: this indicates that the algae are dead. You can then begin cleaning the water to restore a perfectly clear pool.
8. Clarify your water with Jack’s Magic Super Pacs
To complete the treatment, place one sachet of Jack’s Magic Super Pacs in your pool’s skimmer. This powerful clarifier accelerates the digestion of dead algae and quickly restores crystal-clear water. Although the process may be a little slower in cold water, you should have clear water again within 2 to 4 days. This is the essential step for transforming a cloudy pool into a crystal-clear pool ready for use.
Conclusion: say goodbye to your green pool and enjoy clear water again
Treating a green pool may seem discouraging, but with the right products and a proven method, you can restore clear, healthy water in just a few days. From activating the pump to applying Dazzle Ultra Shock, along with cleaning the filter and adding Jack’s Magic Super Pacs, every step is essential for effectively eliminating algae.
Still have doubts, or is the water not returning to normal? Visit Piscine Hippocampe in-store or contact our team. Our specialists are here to advise you and help bring your pool back to life quickly and sustainably.
