
Green water after just a few days? Using more chemicals than usual? Filtration problems as soon as the season starts? Most of these issues have the same cause: very common mistakes made when reopening the pool after winter.
The good news is that avoiding them is much easier than it seems.
1. Waiting Too Long to Start the Pool
As the water begins to warm up, algae and bacteria multiply quickly. Starting the setup a few weeks earlier can make the difference between an easy opening… and a complicated recovery.
2. Not Checking the Filtration System
After months without use, your pool needs more than simply turning the pump back on. Checking the filter, skimmers, and equipment is essential to prevent cloudy water and unexpected breakdowns.
3. Adding Chemicals “By Eye”
Adding chlorine or algaecide without testing the water first is one of the most common mistakes. Before applying any treatment, it’s important to check and balance parameters such as pH levels.
4. Forgetting the Shock Treatment
Even if the water looks clean, it still needs an initial disinfection to eliminate microorganisms that may have built up during winter.
5. Neglecting the First Few Days
The beginning of the season is the most important time for keeping the water in perfect condition throughout the summer.
Conclusion: A Good Start Means a Stress-Free Summer
Getting your pool ready in spring can be much easier with a proper startup routine and by avoiding some common mistakes:
- Make sure the filtration system is working properly and perform the necessary maintenance.
- Adjust the pH level before adding any chemical products.
- Carry out a shock chlorination treatment to disinfect the water.
- Apply preventive treatments to avoid algae growth.
- Properly set the filtration hours according to your pool’s needs.
Avoiding these mistakes will not only help keep your water crystal clear. It also means fewer surprises, lower chemical costs, and more time enjoying your pool. Because summer should start with a swim… not with problems.

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