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Pool and spa: chlorine water treatement

To spend a quiet summer, the treatment of your pool is essential. There are several types of treatment such as chlorine, bromine or salt which have other benefits but are a bit more expensive. Chlorine is the most commonly used product to keep pool water clean. It has a disinfecting action by eliminating all the micro-organisms in your pool and thus helps to fight against the appearance of algae.

chlorine water treatement. women using an ICO Pool

The different forms of chlorine to treat water

Pool and spa chlorine is available in several forms:

Chlorine in pebbles: this is the most commonly used form. Simply slide a pebble into the skimmer of your pool or in a floating diffuser (for self-supporting / above ground pools) and then let it dissolve gradually. These chlorine pebbles have a slow action and are used to maintain the chlorine level. Smaller pebbles can be used for occasional chlorine shock actions.

Chlorine powder :  chlorine powder dissolves quickly and is often used as a "shock treatment". It is convenient when restarting your pool or when the water of it is very dirty.

Liquid chlorine: liquid chlorine is more difficult to dose and handle.

Different types of chlorine

  • Non-stabilized chlorine: This is a chlorine with a strong disinfecting power but which is not protected from UV rays and is destroyed in a few hours. It can be completed with a stabilizer.
  • Stabilized chlorine: It contains a stabilizer,cyanuric acid, which protects it from the sun's UV rays. It is the most used form of chlorine for swimming pools due to its comfortable use.

Comment mesurer le taux de chlore de votre piscine ou spa ?

Le taux de chlore de votre eau de baignade se mesure grâce à des bandelettes ou des « chlore-test ». Ce taux doit être compris entre 1 et 3 mg par litre (chlore libre). Vous pouvez aussi faire usage d’appareils mesureurs électroniques qui sont beaucoup plus précis ou des pastilles DPD (Trousse d’analyse).