This MAREVA Joker Chlorine Cleaning Pack combines the essential shock duo of slow chlorine / fast chlorine with a clarifying cartridge: everything you need to have a pool that is not only hygienic but also clear and crystal clear. You are provided with the essential minimum for a correctly disinfected pool: slow chlorine and fast chlorine. Indeed, you need a regular maintenance product, but also another more powerful shock treatment to pour punctually, and this even if your water is apparently beautiful. Indeed, the shock treatment is essential for it to remain healthy. Slow Chlorine will effectively disinfect your water on a constant basis, once a week. Rapid Chlorine is a shock treatment with a powerful disinfecting action, to be poured once a month, which aims to fight against the habituation effect of bacteria to slow chlorine. The 250 g pebbles are sufficient for 20 to 30 m3 of water and are placed directly in the skimmer or diffuser. This combination is ideal for removing all bacteria, algae, impurities and other micro-organisms from the water. However, the clarifier cartridge is the final key product that will make your water truly crystal clear, as there is often a large residue of sand and other micro-particles in the water. These cartridges, with their highly active flocculating agents, will capture the finest particles and boost the efficiency of your sand filter. For perfectly healthy water that is clear to the naked eye! Advantages : Slow chlorine / Fast chlorine: essential combination for your pool to be disinfected Clarifying cartridge: key product for clear water (removes sand and micro-particles such as algae) All you need for the maintenance of your pool Easy to use Large quantities Characteristics : Slow chlorine : 5 kg of chlorine to disinfect in 250 g pebbles Size of the pebble : 8 cm Slow dissolution Chlorine composition: 93.02 1 tablet for 20/30 m of water To be put directly in the floating/skimmer dosing unit To be used about once a week Rapid chlorine : 5 kg of chlorine for disinfection in the form of 250 g tablets Shock action Anti-algae Disinfectant Type of chlorine: Chlorine 60 1 tablet for 20/30 m of water To be put directly in the floating/skimmer dosing unit To be used about once a month Clarifying cartridge : 1x 1kg box Flocculating agents To be placed directly in the skimmer Please read the instructions for use carefully for the correct use of the products. Biocidal products should be used with care. Packaging : 1 x Joker MAREVA clarifying cartridges for swimming pools - 1kg - 041009U1 x Joker MAREVA slow chlorine pebbles for swimming pools - 5 kg - 250 g - 100766U1 x Joker MAREVA fast chlorine pebbles for swimming pools - 5 kg - 250 g - 100771Ulivrable in their original packaging