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50 to go for free UK Delivery*

    At UK Pool Store, we want you to know that we are still processing orders, due to safe working practices, your order may take a day or so longer at this time, also our shop is closed in line with government guidelines. Like you, we are keeping a close eye on the rapid developments with COVID-19, and will continue to provide updates as needed via our website


50 to go for free UK Delivery*


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50 to go for free UK Delivery*

Shock Chlorine Granules - UKPS

  • Shock chlorine granules available from UK Pool Store, Calcium Hypochlorite Granules (minimum 65%) shock is the ideal way to shock treat your pool, especially before spring opening.

Ref: 75

Total Price: (Including VAT at 20%)

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Shock Chlorine Granules - UKPS
Detailed Description
UK Pool Store Shock Chlorine Granules (65% Strength)

These non stabilised Calcium Hypochlorite granules (min 65%) are the ideal way to shock treat your pool, especially before spring opening.

Our Pool Chemicals are sourced from our UK supplier Complete Pool Controls Ltd and are of the highest quality.

Application Instructions
1. Maintain pH levels within the ideal range of 7.2 - 7.6. If the level is not in this range, adjust accordingly.

2. Maintain free chlorine residuals routinely in the 1 - 3 mg/l (ppm) range. Shock or oxidising procedures are recommended either weekly or fortnightly with a maximum of 10mg/l (10ppm) for a full 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 product is fully dissolved. Add the resulting solution to the pool whilst the pump is 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 clears.

6. After shock treatment procedures allow the chlorine to drop below 5ppm before bathing recommences and in any event wait for at least 30 minutes before bathing recommences.

65% Shock Chlorine Granules Dosing Rates
Water Volumes To Increase Pool Chlorine Level by
LitresGallons 1mg/L (1ppm) 5mg/L (5ppm) 10mg/L (10ppm)
4,545 1,000 7g 35g 70g
11,360 2,500 17g 88g 175g
22,700 5,000 35g 175g 350g
45,450 10,000 70g 350g 700g
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 any other chemicals including cleaning products and chlorine products, as a dangerous reaction will occur.
- Do not pour this product into a pool skimmer basket containing chlorine tablets or any other product.
- When pre-dissolving product always add product to water not the other way round.

Handling & Storage
- 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.

This Granular Shock contains Calcium Hypochlorite 65% CL Active - EC Label 231-908-7 UN2880

- Contact with combustible material may cause fire.
- Harmful if swallowed.
- Contact with acids liberates toxic gas.
- Causes burns.
- Very toxic to aquatic organisms, may cause long term adverse effects in the aquatic environment.


- Use Biocides safely. Always read the label and product information before use.
- Keep locked up and out of reach of children.
- In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
- Wear suitable protective clothing,gloves and eye/face protection.
- In case of accident or if you feel unwell seek medical advice immediately and show this container or label.
- Avoid release to the environment.
- Refer to special instructions/safety data sheet.
Stock & Delivery
This product is in stock at our warehouse and is ready for next working day delivery.

Delivery - Mainland UK
We currently achieve a next working day delivery rate of 98.5% on all stock orders placed before 3pm Monday to Friday. Please be aware that orders processed after 3pm on Thursdays will be processed and dispatched on Friday for Monday delivery. This does not include Bank Holidays, which are classed as non-working days. Should you require a Saturday delivery or have any other delivery enquiries, please email dispatch@ukpoolstore.co.uk who will respond to your request quickly.

Try to include your mobile phone number in the checkout area so that our delivery drivers can contact you should they need any further assistance or clarification in delivering your order.

Please ensure you leave detailed information if your delivery address is hard to find or a new housing development. If you know there is a possibility of missing the delivery, you can at the checkout stage leave instructions for the delivery driver to leave without signature and place your goods with a neighbour or in a discreet place out of sight for your later retrieval.

Please note some areas including Scotland (post codes KW,IV,HS), Isle of Wight, Jersey, Guernsey and the Isle of Man will need extra carriage.


If you are unable to thoroughly check your delivery upon receipt, sign for it as UNCHECKED. If the package is damaged in any way, no matter how small, please sign for it as DAMAGED. We CANNOT CLAIM from our carriers for any damaged items that have not been signed for as UNCHECKED or DAMAGED.

If you sign for a delivery as OK, which you later find to be damaged, our carriers WILL NOT accept liability and you may be charged for the damaged items, in this case a delivery charge for replacement items WILL be made.
Warranty & Returns
This product is fully CE approved, but as a chemical based product returns are restricted, and the means of return have to be approved by us, prior to the item being returned due to the nature of these goods.

Should you require any further information, please email info@ukpoolstore.co.uk where we will respond to your request quickly.
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