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    Pool winterisers


    Pool winterisers: water protected while the pool rests

    A pool winteriser is a chemical added to the water at the end of the bathing season to stop it going off while the pool is not in use: it holds back algae and bacteria and makes the spring start-up easier. Here Q-Tech brings together liquid and floating-dispenser winterisers from AstralPool and CTX for outdoor pools.

    The winterising season runs from September to November. According to AstralPool, the liquid winteriser is added after superchlorinating, with the pH adjusted and the filtration running so that it spreads evenly.

    Models in this collection

    ModelFormatWater treated per packPool type
    AstralPool liquid winteriser 11430Liquid, 5 l100 m³Any treatment, including PHMB
    AstralPool copper-free winteriser 16553Liquid, 5 l60 m³Liner, polyester and vinyl
    Sleepy CTX-235Floating dispenser50 m³Outdoor pools
    AstralPool Inverlong 75151Floating dispenser50 m³Outdoor pools

    Data according to AstralPool and CTX.

    How to choose a pool winteriser

    • By lining: for liner, polyester or vinyl, the 16553, which according to AstralPool contains no copper and does not stain these materials.
    • By volume: 5 l per 100 m³ with the 11430, 5 l per 60 m³ with the 16553 and one floating dispenser per 50 m³.
    • By dosing method: the liquid is poured in at once; the floating dispenser is pierced at its marks, left to float and used only once. Before winterising, clean the pool edges and the chlorinator cell with our cleaners and descalers; if the water is already green, treat it first with our algaecides and clarifiers.

    Applications

    • Home pools left full over the winter.
    • Second homes where nobody checks the water every week, with a floating dispenser.
    • Liner or polyester pools that need a copper-free product.

    Why buy pool winterisers from Q-Tech?

    1. If you are unsure of the dose for your volume or lining, you can book a technical call with an Expert Technician.
    2. The rest of the treatment comes in the same order: chlorine and pH correctors, algaecides and cleaners.
    3. For a quick question about which winteriser suits you, message us on WhatsApp.

    Frequently asked questions

    When is the winteriser added?

    At the end of the bathing season. According to AstralPool, after superchlorinating the water and with the pH adjusted; the liquid is spread with the filtration running.

    How many packs do I need?

    It depends on the volume: according to the manufacturer, 5 l per 100 m³ with the 11430, 5 l per 60 m³ with the 16553 and one floating dispenser per 50 m³.

    Do I need a copper-free winteriser?

    Yes, if your pool has a liner, polyester or vinyl finish: according to AstralPool, the 16553 is copper-free and does not stain these finishes.

    Choose your winteriser by volume and lining and see the rest of our pool chemicals: good winterising makes spring start-up easier.

    FP54·261112