The water in a swimming pool is damaged through its use by bathers and by its surroundings It is therefore essential that it is checked and treated regularly. Disinfection must be ongoing to prevent microorganisms from proliferating. The water must constantly be disinfected and sanitizing. This is something that chlorine does extremely well because it is both sanitizing and oxidizing.

There are 2 families of chlorine products for treating the water in your swimming pool:

• Stabilized chlorine products
• Unstabilized chlorine products

The most commonly used chlorine is stabilized chlorine.
Stabilized chlorine (blue label) is chlorine that releases a stabilizer (cyanuric acid). This stabilizer protects the chlorine from the destructive action of the ultraviolet radiation in sunlight. However, too high a concentration of stabilizer in the water can reduce the effectiveness of the chlorine, and in this case the water quickly becomes green and cloudy. This is known as overstabilization. To avoid overstabilization problems, use unstabilized chlorine (chlorine that contains no stabilizer). You can use and dose hth Stabilizer separately as required to protect the action of the chlorine from ultraviolet light.

To guarantee healthy water, opt for hth Stick. This product is very easy to use: after adjusting your pH to between 7 and 7.4, take one stick per 20 m³ of water and place it directly in the skimmer(s), provided the skimmers do not contain stabilized chlorine. Then, approximately every 4 to 5 days, as required adjust the number of sticks you add to maintain a level of available chlorine (DPD1 tablet) above 2 mg/l. This will give you 7 days of treatment. Now you can lay back and enjoy your swimming pool.

To complement hth unstabilized chlorine (red label), and to provide maximum protection against the destructive action of ultraviolet light, use hth Stabilizer. To obtain a stabilizer concentration of 10 mg/l, add 100 g of hth Stabilizer Granules for every 10m³ of water to the pump's pre-filter. The recommended ideal value is 60 mg/l of stabilizer.

To deliver a shock chlorination in order to increase the chlorine level quickly, use hthShock.

Warning! Do not mix solid stabilized chlorine (blue hth label, trichloroisocyanuric acid or sodium dichloroisocyanurate dihydrate) with chlorine that does not contain stabilizer (red hth label, calcium or lithium hypochlorite).