Pool sanitizers

Depending on your needs, you can opt for granules, tablets, liquid chlorine, or even an automatic sanitation system. Each solution offers a different mode of action to keep your water clear and safe. To learn more, consult our guide.

Yes. Chlorine is one of the most effective disinfectants for swimming pool water. As soon as it dissolves, it forms hypochlorous acid, a molecule that quickly destroys bacteria, viruses, and microorganisms by oxidizing their cell membranes. A free chlorine level between 1 and 3 ppm ensures safe water, reduces the risk of skin and eye infections, and prevents algae growth. Well-balanced water (pH 7.2–7.6) significantly improves its effectiveness.

Chlorine is a disinfectant used to keep pool water clean, clear, and safe. It eliminates germs, destroys algae, and neutralizes contaminants brought in by swimmers (sweat, sunscreen, dirt). It is available in several forms: granules, tablets, liquid, or generated by a salt system. Proper chlorine management is essential to maintain healthy water and prevent odors or irritation.

To apply powdered (granular) chlorine, first fill a bucket with water, then dissolve the recommended amount of product in it. Next, slowly pour the solution around the perimeter of the pool with the pump running to ensure proper distribution. Never pour the granules directly into the skimmer, as this can damage the plumbing or filter. Allow the water to circulate for at least 30 minutes, or even an hour, before swimming.

The goal is not to add a fixed amount, but to maintain a constant level of free chlorine between1 and 3 ppmChlorine consumption varies depending on the heat, swimming, rain, and sunshine. The warmer and sunnier it is, the faster the chlorine is consumed. Test the water every day or every other day and adjust accordingly.

For most residential pools, we put1 to 3 lozengesin a chlorinator or a floating dispenser. The exact amount depends on the water volume, temperature, and sunlight. The goal is to maintain1–3 ppmIf the chlorine level drops too quickly, slightly increase the float opening or add an extra tablet.

After regularly adding chlorine, wait approximately30 minuteswith the pump running. After shock treatment, you must wait.30 minutes to 1 hour, depending on the dose used. Always check that the chlorine isbelow 5 ppmbefore swimming.

To raise the free chlorine level, add granular chlorine or increase the opening of the chlorinator/float. Also, ensure the pH is properly adjusted (ideally 7.2–7.6), as a pH that is too high renders chlorine almost ineffective. In hot weather or after heavy swimming, a shock treatment may be necessary to restore the level.

The simplest way is to leave the pool in the sun: UV rays naturally destroy chlorine. Use a chlorine neutralizer (chlorine destroyer) for an immediate effect. When the chlorine level exceeds 5 ppm, it's best to wait before swimming.

Once in water, chlorine transforms into hypochlorous acid, a highly reactive molecule that destroys bacteria by oxidizing their cell membranes. This process is rapid and effective, even at low concentrations. This is why chlorine remains the most widely used disinfectant in swimming pools.

First, check that the salt level is within the correct range. Then, increase the cell's production. If the water is cloudy or after heavy swimming, perform a shock treatment (ideally with unstabilized chlorine). Also, clean the cell if it has calcium buildup: a dirty cell produces less chlorine.

Properly balanced chlorine has almost no odor. Strong odors actually come fromchloraminesThese are byproducts formed when chlorine is lacking and reacts with impurities. Paradoxically, a strong odor often indicates a chlorine deficiency. A shock treatment quickly corrects the situation.

When used correctly, it is safe. However, if handled incorrectly, it can irritate the eyes, skin, or respiratory system. Never mix chlorine with other chemicals and always handle it with dry hands.

Chlorine is not harmful in normal doses, but it can dry out the skin, especially for sensitive individuals. A shower after swimming helps to remove residue and moisturize the skin.

To adjust the bromine level in a swimming pool, start by checking it with a test strip: the ideal range is between 3 and 5 ppm. If the level is too low, add bromine tablets to a brominator (never directly into the skimmer). Then adjust the brominator's opening to control the dissolution. If the level is unstable, perform a shock treatment to reactivate the bromamines, as bromine works in a "cycle" and regains its effectiveness after oxidation. Good circulation and a pH between 7.2 and 7.8 also improve bromine performance.

The number of tablets depends on the pool volume and the brominator model. Generally, enough tablets are added to partially fill the pipe, which is equivalent to...3 to 6 lozengesFor a residential pool, the goal is to maintain a stable level between 3 and 5 ppm. Monitor the test strips regularly and adjust the amount or opening of the brominator as needed.

To quickly increase the bromine level, add tablets to the brominator and increase the flow rate to accelerate dissolution. You can also perform a shock treatment: this transforms the bromamines (the "used" bromine) into active bromine, which immediately raises the disinfection level. Also, ensure that the pH is properly balanced, as a pH that is too high reduces the effectiveness of the bromine.

Yes, but bromine is generally used in spas rather than swimming pools. It remains effective in warm water, has almost no odor, and tolerates pH fluctuations better. However, it is more expensive than chlorine and cannot be stabilized against sunlight. This means that bromine is consumed much faster in outdoor pools exposed to UV rays. It can, however, be a good choice for an indoor pool.

Bromine is used to disinfect water by destroying bacteria, algae, and organic impurities. It works similarly to chlorine, but has the advantage of being more stable in warm water and less odorous. In an indoor pool, bromine is often more comfortable for swimmers sensitive to chlorine odors or eye irritation. However, it is less popular in outdoor pools because it degrades quickly in sunlight and is more expensive.