This MAREVA Multi-action Joker Winterization Product - 5 L - Revatop 12% Algaecide - 5 L pack is a complete treatment to maintain the quality of your pool water during the winter. In the spring, you can then resume the regular maintenance treatment. You'll be able to see your pool clear again in the summertime! Advantages : Joker multi-action winterization product - 5 L : Ultra concentrated liquid Prevents scale deposits, algae and bacteria growth Improves water clarity and transparency Protects water during winter Better for the environment and your health: guaranteed free of copper sulfate, EDTA and polyphosphates Compatible with all other treatments Makes it easy to put the pool back in service in the spring Large quantity (5L) for intensive use MAREVA REVATOP 12% Algaecide - 5 L : Ideal for correcting green water in your pool and eliminating algae Ultra powerful and fast purifying and disinfecting shock action Immediate results No waiting time before swimming Cleans the dirtiest and cloudy water No need for stabilizers: less chemical than chlorine Easy dosage Compatible with all treatments Characteristics : Joker multi-action winterization product - 5 L : Use: when the water temperature is below 16C Dosage: 0.5 to 0.7 liter of multi-active wintering per 10 m of water to protect. Chemical substance: PHMB Compatible with all other treatments Quantity : 5 L Instructions for use : How to winterize ? 1) Clean the filter. The annual cleaning of the filter is essential to avoid the creation of a nest of algae, scaling or the creation of a privileged passage which would damage it and make it ineffective. 2) Clean the water line with a suitable product (do a shock treatment if necessary) as well as the skimmer baskets, the pump pre-filter, the back of the projectors and the inside of their niche. 3) Check the pH and adjust it if necessary. 4) Sweep the pool and pour the winterization product that will take care of your pool all winter long. The sweeping of the pool can be done manually or automatically depending on the model of broom you have chosen. Pour multi-active wintering directly into the pool in front of the outlets and let the filtration run for two hours. Available in 1 L container. Dosage: Use 0.5 to 0.7 liter of multi-active wintering per 10 m of water to protect. Pools of 0 to 20m: 1 liter of JOKER Multi-Active Winterization Pools from 20 to 35m: 2 liters of JOKER multi-active winterization Pools from 35 to 50m: 3 liters of JOKER multi-active winterization Pools of 50 to 70m: 4 liters of JOKER multi-active winterization Pools of 70 to 90m: 5 liters of JOKER multi-active winterization Pools from 90 to 120m: 7.5 liters of JOKER multi-active winterization Pools of 120 to 150m: 10 liters of JOKER multi-active winterization MAREVA REVATOP 12% Algicide - 5 L : Can of 5 L Canister color: Blue Hydrogen peroxide concentration: 12 A 5L can of Revatop for a pool up to 50 m3 Packaging : Pack MAREVA1 x Joker Multi-Action Winterizer - 5L 1 x Joker MAREVA Multi-Action Winterizer - 5L - 041028Delivered in its original packaging