Pool: The 1/2 Method for Continuous, Clear Water (Effortless) from Spring to Fall

Piscine et fortes chaleurs : gare aux dégâts !

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Piscine et fortes chaleurs : gare aux dégâts !

When it is very hot, you must pay special attention to your pool water: high temperatures indeed favor the growth of algae and bacteria, and your pool could turn green in no time.
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Piscine et fortes chaleurs : les bons réflexes d’entretien pour conserver une eau cristalline

Also, to avoid the worst, remember to filter the water regularly, to properly monitor the pH and the chlorine level, and to clean your pool very often with a skimmer for floating debris, and a robot or a vacuum for submerged dirt. Also remember to brush the walls!
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Piscine et fortes chaleurs : les erreurs à éviter à tout prix

Also avoid overheating the water: too high a mercury will promote algae growth, and reduce the effectiveness of the chemicals. When it is very hot, also be sure not to overcrowd your pool: bathers bring many contaminants (sunscreen, sweat…) into the water which can upset the chemical balance of the pool.
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Piscine et fortes chaleurs : la technique du ½ pour une filtration idéale cet été

Also, to know how long per day you should run the filtration of your pool, use the 1/2 method: you simply run it for a specific number of hours corresponding to the outside temperature divided by two.
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Piscine et fortes chaleurs : comment appliquer la technique du ½ ?

Thus, if the ambient temperature reaches 28°C, the pool filtration should be operating for 14 hours, if it’s 30°C, it goes to 15 hours per day, etc… The longer the water remains in motion, the lower the risk of undesired organisms developing, encouraged by the high exterior temperatures…
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Piscine : à quelle fréquence changer le filtre lorsqu’il fait chaud ?

As for cleaning and changing the filter, this mainly depends on the type of filtration your pool has (cartridge, sock, sand…). Refer to the manufacturer’s guidance, but bear in mind that when it is hot, you generally need to change the filtration more regularly.

Whether freestanding or built-in, your pool requires regular maintenance to ensure clean water. Its chemical balance must be optimal for it to be perfectly safe and clean for swimming. This is the sine qua non condition to fully enjoy your pool all summer long. But between constant checks and the adjustments required, it can be burdensome (even discouraging) to constantly maintain water quality. Fortunately, the 1/2 method greatly simplifies this task. Discover how it can help you keep crystal-clear water all season with minimal effort.

The right steps to maintain your pool at opening

From spring to autumn, the swimming pool is a true oasis of freshness and relaxation for those fortunate enough to own one! But its setup does not come without consequences: to prevent, especially during hot spells or heavy usage, that its water deteriorates (and becomes colonized, for instance, by nasty and dangerous algae), you must commit to strict and regular maintenance. Here are essential recommendations to keep your pool water crystal clear, even during heat waves:

Ensure regular water filtration: filtration keeps water in motion, which prevents debris and microorganisms from accumulating.
Monitor pH and chemical balance: regularly check pH, alkalinity, and chlorine levels with quality test kits, and adjust as needed.
Maintain regular chlorination: chlorine is crucial for eliminating bacteria and keeping water clean. Use regular chlorinated products (tablets, granules, or automatic chlorination systems) to maintain an ideal residual chlorine level in the pool.
Avoid overcrowding: swimmers inadvertently introduce organic contaminants (sunscreen, lotions, hair products…) into the water. Try to limit the number of people in the pool at once to prevent residue buildup.
Carry out regular cleaning: use a skimmer, a manual vacuum, or a pool robot to remove floating and submerged debris (leaves, insects, twigs…). Also brush the walls from time to time: they can accumulate mineral deposits, algae, and bacteria.
Maintain an appropriate water level: if the water level is too low, it can impair the proper operation of the pump and filtration system.
Avoid overheating: when a pool has a heating system, monitor the water temperature closely. Too high a temperature can promote algae growth and reduce the effectiveness of chemicals.

The ½ method to make your pool water perfectly crystal clear all summer

And to know exactly how many hours per day you should run your pool filtration, there is a simple rule to memorize! It’s the 1/2 technique. Rather than relying on a fixed filtration time, this method offers a simple yet effective rule: divide the outside temperature by two. For example, if the ambient temperature reaches 30 degrees, you should run your filtration system for at least 15 hours per day. This approach ensures water is constantly in motion, thereby reducing the risk of unwanted organisms developing.

Because when the temperature rises, micro-organisms proliferate faster, while the disinfectant chemicals can lose their effectiveness under strong sun. By running the filtration for a duration equal to half of the ambient temperature, you increase the chances of maintaining clear, balanced water with little effort!

Heatwave: how often should you change the filtration of your pool to keep the water always clean?

Beyond the filtration duration, you should also pay close attention to cleaning and changing the pool filter when it is very hot. Regularly check its condition to prevent any blockage. Depending on how often you use your pool, it may be necessary to replace the filter more often than usual, especially during periods of extreme heat. Consult the manuals and best practices related to your type of filter, and enjoy a crystal-clear water all summer!