Swimming Pool Chemicals - Stabilised Chlorine Granules

£10.95  £8.95
In Stock Icn Tick
  • Stabilised Chlorine Granules
  • To be used for daily disinfection of your swimming pool or spa.
  • Kills pool bacteria
  • Fast dissolving
  • Available in 1kg, 2kg, 5kg and 25kg containers 
  • NOTE: Blue Horizon, Swimfresh & Acti labels are all the same product
  • Different distributors may be used at peak times to ensure sufficient stock levels

The most common way to kill bacteria in your pool and keep your swimming pool water healthy is to use chlorine. Before using chlorine, it is important to have a correct water balance first. Once this has been achieved, chlorine levels between 1.0-3.0 mg/l should be satisfactory to preserve bacteria free swimming pool water. There are two ways to tell if your pool is a well-managed chlorine treated swimming pool is that it will have no odour and the level of chloramines will be less than 0.5 mg/l. Here at Cascade Pools we have a wide range of swimming pool chemicals for you to choose from to suit your swimming pool requirements.

  • Stabilised Chlorine Granules
  • To be used for daily disinfection
  • Minimal effect on pH.
  • Application Instructions: Maintain pH level within the ideal range of 7.2 - 7.6 and free chlorine residuals within the range of 1-3 mg/l (ppm) for pools and 3-5 mg/l (ppm) for spas.  
  • This product may be applied directly to pools and spas where temperatures exceed 20 degrees Celcius. If below this temperature or in doubt pre-dissolve this product in a clean plastic container at a maximum rate of 100g per 2.2 gallons (10 litres) of water. Stir well to ensure the product is fully dissolved then add the solution to the pool or spa whilst the pump(s) are turned 'on'. 
  • It is recommended that you periodically (e.g. weekly/fortnightly) shock or oxidise your water to eliminate any excess contamination.
  • NOTE: In hot weather, high pool use or heavy rain the pool may require a higher daily dose rate
  • Guide Thumb

    How to treat green water

    Find out all you need to know about algae and green water, how to treat it and how to cure it.

Returns Policy


Your rights to return goods are protected under the EU Distance Selling Directive.

You are entitled to cancel your order and return the goods within 7 working days for a full refund not including the cost of delivery. Do this by contacting us by email or telephone and quoting the order number supplied to you. Your refund will be paid within 30 days. You are responsible for the cost and risk of loss or damage when returning the goods, so you should take out enough postal insurance to cover their value. This cancellation policy does not affect your rights when we are at fault - for example, if goods are faulty or incorrectly-described.

Exclusions: Bespoke items (made to measure items) are not included and cannot be returned. If a bespoke item is faulty then the product warranty /guarantee will take effect.

Any goods returned should be in saleable condition.

These terms apply to your order. We may change our terms and conditions at any time, so please do not assume that the same terms will apply in the future.

None of these terms affect your legal rights and these are not diminished in any way. If any term is held to be invalid under any applicable statute or rule of law, that term is automatically omitted from the terms to minimum extent necessary to comply with the law and without affecting the validity or enforceability of the remainder.

You may also want to consider

  1. Shock Grans

    Swimming Pool Chemicals - Granular Shock

    • Shock Chlorine Granules
    • May be used for regular disinfection
    • Destroys Swimmer Wastes
    • Available in 1kg, 2kg & 5kg
    from £9.95
  2. pH Plus

    Swimming Pool Chemicals - pH Plus Powder

    • pH Plus Powder
    • Increases pH levels
    • Promotes bather comfort
    • Protects plant room equipment
    • Available in 1kg, 5kg & 25kg containers
    from £5.95
  3. pH Minus

    Swimming Pool Chemicals - pH Minus Powder

    • pH Minus Powder
    • Decreases pH level
    • Promotes bather comfort
    • Protects plant room equipment
    • Available in 1.5kg, 7kg & 25kg containers
    from £6.95