Chlorine

Swimming pool chemicals are required to keep your pool free from bacteria. Blue Horizons swimming pool chlorine comes in the form of granules or tablets.

  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. 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
  5. 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
  6. Blue Horizon Chlorine Reducer 1kg

    Swimming Pool Chemicals - Blue Horizons Chlorine Reducer

    • Reduces chlorine and bromine
    • 1kg container
    • Problem solver
    £8.95
  7. Blue Horizon Stabilised Chlorine Granules

    Swimming Pool Chemicals - Stabilised Chlorine Granules

    • Granular stabilised chlorine
    • Used for daily disinfection
    • Minimal effect on pH
    from £7.65
  8. Multi Tabs

    Swimming Pool Chemicals - Multifunctional 200g Chlorine Tablets

    • Multifunctional 200g Chlorine Tablets 
    • Slowly erodes over 3-5 days depending on water flow 
    • Contains clarifier & algaecide
    • pH 3.0
    from £14.95
  9. Blue Horizon Multifunctional Floating Dispenser

    Swimming Pool Chemicals - Blue Horizons Multifunctional Chlorine Floating Dispenser

    • Multifunctional Floating Chlorine Dispenser
    • Available in two sizes: 720g & 1.5kg
    • Suitable for many different pool sizes
    • Part of the BOAST system
    from £11.95
  10. Blue Horizon 20g Multifunctional Chlorine Tablets

    Swimming Pool Chemicals - Blue Horizons Multifunctional 20g Chlorine Tablets

    • Ideal for use in small above ground pools and spas 
    • Contains clarifier & algaecide
    • Designed to erode over 3-5 days
    • Ideal for small pools, spas & hot tubs
    from £13.75
  11. Large Floating Dispenser - For Chlorine or Bromine Tablets

    Swimming Pool Products & Accessories - Large Dispenser - For Chlorine or Bromine Tablets

    • Large floating dispenser For Above Ground Swimming Pools
    • Adjustable setting allows for increasing/decreasing chlorine/bromine levels in the pool
    • Holds 200g tablets
    £6.65
  12. Small Floating Dispenser - Holds Small Chlorine or Bromine Tablets

    Swimming Pool Products & Accessories - Small Floating Dispenser - For Small Chlorine/Bromine Tablets

    • Floating dispenser for SMALL Above Ground Pools or Spas 
    • Can increase or decrease chlorine or bromine levels in the pool/spa
    • For use with SMALL tablets only
    £3.95

 

 

Swimming Pool Chlorine and Bromine

 

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 is will have no odour and the level of chloramines will be less than 0.5 mg/l. Blue Horizons have a wide range of swimming pool chemicals for you to choose from to suit your swimming pool requirements.

 

Chlorine Stabiliser

Often the chlorine is lost from the swimming pool through the sun’s UV rays. By using a chlorine stabiliser, this will reduce the amount of chlorine that is lost to the sunlight. Ideally the chlorine stabilizer level should be 60 mg/l. If you need to increase the level, use Blue Horizons Chlorine Stabiliser granules or tablets. To decrease the level, it is necessary to drain some of the water out and refill with some fresh. Additionally, regular backwashing of the filter will keep this level low.

 

Chlorine Demand

One of the main problems with pool water is chlorine demand, this is the amount of chlorine required to kill the algae, bacteria and other germs in your pool. To reduce this chlorine demand it is necessary to shock the water, using either Blue Horizons Granular Shock or Shock ‘n’ Froc Granules.

 

Bromine

Along with chlorine, bromine is also another type of pool sanitiser, which needs to be dispensed via a chemical feeder. There are many differences between the two. Bromine, unlike chlorine, has very little smell, causes very little or no eye or skin irritation, is more efficient than chlorine over a wider pH band. Additionally, it is not affected by sunlight and does not require any extra chlorine stabiliser. If you wish to use bromine instead of chlorine, we recommend Blue Horizons Bromine Tablets.

 

Whether you are using chlorine or bromine, all of these levels can change over the course of the season due to rainwater, fresh water and swimming pool chemicals. Therefore, it is important to check the levels regularly.