This MAREVA chlorine-free cleaning pack for pools from 9 to 15 m3 - Berling'o - Revatop guarantees you a healthy, crystal-clear pool with all the products you need. This pack contains a regular maintenance product (Berling'o) and an essential shock treatment (Revatop). The Berling'o, containing 12 sachets, will disinfect the water, prevent algae and prevent limescale build-up on a regular basis, at a rate of one Berling'o per week for pools of between 9 and 15 m (i.e. for a round pool a diameter of 4.57 m and 5.20 x 3.30 m for a rectangular pool). The Revatop will ensure a shock treatment, a more powerful treatment to be carried out every 3/4 weeks even if your water is apparently beautiful and healthy: it is essential so that it remains so. Revatop will reinforce the bactericidal action of the PHMB treatment by its "shock" effect on micro-organisms and bacteria. Its action is instantaneous, unlike a shock treatment with chlorine where you have to wait 24 hours, you can bathe again a few hours later. The advantage of Revatop is that it changes the chlorine molecule, a molecule to which bacteria become accustomed. Based on active oxygen, it provides only oxygen and pure water and is very effective. Moreover, it avoids any stabilizer contribution (chemical component to be limited in its swimming pool) and is compatible with all treatments. This pack is ideal for having a beautiful pool without the inconvenience of chlorine: these treatments are odourless, gentle on the eyes and skin, which makes this pack ideal for children's swimming and people with sensitive mucous membranes. Advantages: All in 1 pack: regular maintenance + more powerful occasional maintenance Gentle method without the inconvenience of chlorine (odour, irritation, etc.) while still being effective Regular maintenance product: Disinfects + anti-algae prevention + anti-limescale prevention Essential shock maintenance product: Reinforces and maintains the anti-bacterial action Ideal for above ground pools Ideal for a pure and crystal clear pool Characteristics : Berling'o : Composition: Biguanide (phnB) For pools with a volume between 9 and 15 m, i.e. a diameter of 4.57 m (round pool) and 5.20 x 3.30 m (rectangular pool) 12 x 180 mL bottles Not compatible with oxidizing products such as chlorine Frequency: 1 bottle per week Treatment for 12 weeks (3 months) Available on our site for pools of 2 and 4 m and 5 and 8 m Revatop : 5 L can Can colour: Blue Hydrogen peroxide concentration: 12%. 1 can for 20 m3 of water, adapt according to the volume of your pool Instructions for use: Once a week, pour the contents of a Berling'O into the pool and run the filtration / cartridge purifier for 5 to 8 hours a day. Every 3/4 weeks, pour Revatop 12% as a shock cleaner, respecting the doses indicated in the instructions for use. (1 can for 20m3 of water, adapt according to the volume of your pool) Let the filtration run for about 4 hours and then swimming is possible. Packaging : 1 x Berling'o MAREVA disinfectant without chlorine for pools of 9 to 15 m3 - 12 x 180mL - 100703U1 x MAREVA REVATOP Algicide 12% - 5 L - 000124ULivred in their original packaging