Pool Chemicals

Swimming pool chemicals are essential to keep your swimming pool algae and bacteria free. There are a variety of swimming pool cleaning products below you help you treat your pool.

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  1. Chlorine Tabs

    Swimming Pool Chemicals - 200g Chlorine Tablets

    • 200g stabilised chlorine tablets
    • Slowly erodes over 3-5 days depending on water flow
    • Available in 2kg, 5kg and 25kg.
    • Easy to follow Chemical guide available
    from £14.50
  2. Smalll chlorine tablets 14g

    Swimming Pool Chemicals - Blue Horizons Small Chlorine Tablets 14g

    • Blue Horizons 14g Chlorine Tablets
    • Designed for use with feeders or floating dispensers.
    • Available in 2.5kg & 5kg
    • Easy to follow Chemical guide available
    from £16.95
  3. Multi Grans

    Swimming Pool Chemicals - Multifunctional Stabilised Chlorine Granules

    • Fast dissolving stabilised chlorine granules
    • Contains clarifier and oxygen granules
    • To be used for daily disinfection. 
    from £13.75
  4. TA Raiser

    Swimming Pool Chemicals - Total Alkalinity Raiser

    • Total Alkalinity Raiser  
    • Powder for increasing total alkalinity
    • Available in 5kg & 25kg containers
    from £15.50
  5. TA Reducer

    Swimming Pool Chemicals - Total Alkalinity Reducer

    • TA Reducer Liquid
    • 5 Litres
    • For total alkalinity reduction
    • Product will not increase sulphate levels
    £14.95
  6. Blue Horizon Algae Controller 2 Litres

    Swimming Pool Chemicals - Blue Horizons Algae Controller 2 Litres

    • Blue Horizons Algae Controller
    • Copper free algaecide
    • Use for regular algae prevention
    • Part of the BOAST system
    £17.95
  7. Blue Horizon 600g Chlorine Tablet

    Swimming Pool Chemicals - Blue Horizons 600g Multifunctional Chlorine Tablet

    • Blue Horizons Multifunction 600g Chlorine Block
    • Ideal holiday treatment - long lasting chlorine tablet
    • Slow release tablet lasts 12-20 days.
    • Part of the BOAST system
    £8.50
  8. Blue Horizon Stain & Scale Inhibitor 1 Litre

    Swimming Pool Chemicals - Blue Horizons Stain & Scale Inhibitor - 1 Litre

    • Stain & Scale Inhibitor
    • Liquid product - 1 Litre
    • Prevention & cure
    • Controls & removes stains
    £16.25
  9. Aqua Sparkle Tablets

    Swimming Pool Chemicals - Blue Horizons Aqua Sparkle Tablets

    • Blue Horizons Aqua Sparkle Tablets
    • Ideal for pools and spas
    • 10 x 50g Floc tablets
    • Enhances filter efficiency
    £8.50
  10. Blue Horizon Pool Fusion 350g

    Swimming Pool Chemicals - Blue Horizons Pool Fusion 350g

    • Blue Horizons 350g Pool Fusion Sachet
    • Oxidiser & clarifier
    • Minimal effect on pH
    • Part of the BOAST system
    £6.95
  11. Ultimate Boost Tablets - shock treatment

    Swimming Pool Chemicals - Blue Horizons Ultimate Shock Boost Tablets

    • 1kg of fast dissolving 100g stabilised chlorine shock tablets
    • Measured dose for rapid chlorine boost
    • Ideal for ionic purifiers
    • Part of the BOAST system
    £10.95
  12. Blue Horizon Bromine Tablets 5kg

    Swimming Pool Chemicals - Blue Horizons Bromine Tablets

    • Blue Horizons 20g Bromine Tablet
    • Effective over a wide pH range
    • pH 3.0 - 3.5
    • Part of the BOAST System
    from £14.95

 

Swimming Pool Chemicals

 

Maintaining a correct water balance is vital, in doing so the water quality is preserved and chemicals behave more efficiently. Ensuring your water is balanced also allows you to swim in comfort and not have eye irritation or dry skin. Additionally, the water quality and your pool equipment are preserved.

There are many factors that need to be considered when balancing your swimming pool water:

  • The pH of the water
  • The calcium hardness
  • The total alkalinity of the water
  • The total dissolved solids

The pH Levels

The first factor is the pH level. The pH measures whether your pool water is acidic or alkaline. If the water is between 0 -7, the water is acidic and if the swimming pool water is 7-14, the water is alkaline. Ideally, your pool water should be between 7.2-7.6. Use Blue Horizons pH Plus or Blue Horizons pH Minus to increase or decrease the pH level respectively. To find more information on how to manage the pH level of your pool, please see pH balancers.

The Calcium Hardness

The calcium hardness measures the amount of mineral salts (mainly calcium) in the water and dictates whether the water is hard or soft. The more mineral salts in the water, the harder the water is, this level depends also on the area of the country you live in. For swimming pools, the calcium hardness should be between 200-275 mg/l. It is important to obtain the correct calcium hardness. If you need to lower the calcium hardness you should use Blue Horizons Stain and Scale Inhibitor.

The Total Alkalinity

The total alkalinity measures the water’s ability to resist the pH change. If the total alkalinity is high, the pH is difficult to change, will continue to increase and can also cause scale build up on the swimming pool surfaces as well as within the pipes. However, if the total alkalinity is low, the pH can be difficult to control as it fluctuates easily. Ideally, the total alkalinity should be between 80-150 mg/l. To increase the total alkalinity of your pool water, use Blue Horizons Total Alkalinity Raiser and to decrease the total alkalinity use Blue Horizons Total Alkalinity Reducer.

The Total Dissolved Solids

The Total Dissolved Solids (T.D.S.) is the total of all the dissolved minerals and debris in the water. Your pool should have less than 1,500 mg/l. If the T.D.S. increases above 1,500 mg/l it is necessary to dilute the water, by replacing some of the existing water with fresh as swimming pool chemicals are less efficient.