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Blue Horizons Rapid Shock

£25.00Out of stock

Out of stock


Blue Horizons Rapid Shock is a powerful, stabiliser free fast dissolving oxidiser

High chlorine content – economical.

Blue Horizons Rapid Shock destroys swimmer wastes and helps prevent/kill algae.

Stabiliser-free Chlorine perfect for maintaining levels in your hot tub.


Application Instructions for Spas and Hot Tubs

  1. Maintain pH levels within the ideal range 7.2 – 7.6.
  2. Maintain free chlorine residuals routinely in the 1 – 3mg/l (ppm) range.
  3. Shock procedures are recommended weekly or fortnightly.
  4. If the water temperature is 20o C or higher and water depth at least 4ft deep, broadcast the product directly over the pool surface.
  5. Check the wind direction before broadcasting.
  6. Pre-dissolve this product in a clean plastic container.
  7. Stir well to ensure product is fully dissolved.
  8. Add the resulting solution to the pool whilst the pump (s) are turned ‘on’ near the water inlets to aid distribution.
  9. Repeat dose/application to achieve the desired level.
  10. After using this product keep the filtration pump running until it clears.

Key Features/Characteristics

Helps prevent/remove algae
Destroys swimmer wastes
Rapid Dissolving
pH 11.5

Water Volumes To Increase Chlorine Level
Litres Gallons 1mg/l 5mg/l 10mg/l
4,545 1,000 7g 32g 65g
11,360 2,500 17g 81g 163g
22,725 5,000 33g 163g 325g
68,175 15,000 99g 489g 975g








Additional information

Weight 1 kg