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Chlorine Shock Granules

SKU
SHGRAN5KG

Keep your swimming pool water crystal clear and sanitized with our 5kg Granular Shock, formulated with Calcium Hypochlorite. These non-stabilised chlorine granules are perfect for shock dosing or regular oxidation of pool water, ensuring a clean and safe swimming environment for all.

Pre-dissolve before adding to your swimming pool water. 

Keep your swimming pool water crystal clear and sanitized with our 5kg Granular Shock, formulated with Calcium Hypochlorite. These non-stabilised chlorine granules are perfect for shock dosing or regular oxidation of pool water, ensuring a clean and safe swimming environment for all.

Pre-dissolve before adding to your swimming pool water. 

Product Name RRP Discount Price QtyStock
Chlorine Shock Granules 5kg (Calcium Hypochlorite)
SKU: SHGRAN5OL-1
£62.10 46% £33.54

In Stock

Chlorine Shock Granules 4 x 5kg (20kg) (Calcium Hypochlorite)
SKU: SHGRAN5OL-MAN
£248.40 48% £129.60

In Stock

Lead TimeLead Time: Next Working Day

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Chlorine Shock Granules

Keep your swimming pool water crystal clear and sanitized with our 5kg Chlorine Shock Granules, formulated with Calcium Hypochlorite. These non-stabilised chlorine granules are perfect for shock dosing or regular oxidation of pool water, ensuring a clean and safe swimming environment for all.

Key Features:

  • Effective Sanitization: Formulated with Calcium Hypochlorite, these granules effectively sanitise pool water, eliminating bacteria, algae, and other contaminants.
  • Shock Dosing: Ideal for shock dosing, this product quickly restores water clarity and removes organic pollutants, leaving your pool fresh and clean.
  • Oxidation: Use for regular oxidation to maintain optimal water quality and prevent the buildup of chloramines.
  • Versatile Use: Suitable for routine disinfection as well as shock treatment.
  • Convenient Packaging: Packaged in a 5kg container with handle for easy handling and storage.

Application Instructions: 

    1. Maintain pH levels within the ideal range of 7.2 - 7.6. If the level is not in this range, adjust with pH Plus or pH Minus
    2. Maintain free chlorine residuals routinely in the 1-3mg/|(ppm) range. Shock or oxidising procedures are recommended either weekly or fortnightly with a maximum of 10 mg/|(ppm) for a complete shock treatment. 
    3. Pre-dissolve this product in a clean plastic container at a maximum rate of 100g of product per 2.2 gallons (10 litres) of water. Stir well to ensure the product is fully dissolved. Add the resulting solution to the pool while the pump(s) are turned on, preferably near the water inlets, to aid distribution. 
    4. Repeat dose/application if necessary to achieve the desired level. 
    5. After using this product, pool water may become temporarily cloudy, so keep the filtration pump running until it runs clear. 
    6. After shock treatment procedures, allow the chlorine to drop below 5 ppm before bathing recommences, and in any event, wait for at least 30 minutes before bathing recommences. 
Dosing Rates
Water Volumes To Increase Chlorine Level By
Litres Gallons 1ppm 5ppm 10ppm
4,545 1,000 7g 35g 70g
11,360 2,500 17g 88g 175g
22,725 5,000 35g 175g 350g
68,175 15,000 105g 525g 1050g

General Precautions - Dosing 

  • Wear eye and face protection and ensure granules are not blown back into your face. 
  • Never mix with other chemicals, including cleaning procedures and chlorine products, as a dangerous reaction may occur. 
  • Do not pour this product into a pool skimmer basket containing chlorine tablets or other products.
  • When pre-dissolving product, always add to water, not vice versa. 

Handling/Storage - Important 

  • Handle products in a well-ventilated area, preferably outdoors. 
  • Wash hands after use.
  • Ensure chemicals do not become damp in storage - store in a cool, dry place. 
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