Description
This listing covers the 10kg size.
With Deep Blue Pro Granular Shock, crystal clear pool water is only one treatment away. These calcium hypochlorite granules carry a strong 70% available chlorine level, quickly resolving common pool water issues. Leave algae infestations behind and bring back sparkling, welcoming water using Granular Shock Chlorine.
Think of the period right after a thunderstorm, when nitrogen carried into your pool can turn the water an unwelcome shade of green. This is where Deep Blue Pro Granular Shock proves its worth. A quick dose, using either the Granular Shock Granules or the Shock ‘n’ Floc Granules, can save your pool from algae blooms triggered by storms.
Here’s how to apply the product for the best outcome. Keeping pH in the ideal range and holding free chlorine residuals at the recommended level both matter for achieving spotless pool water. Pre dissolve the granules, pour the solution into your pool, and allow it to work, keeping the filtration pump running so any short lived cloudiness disappears.
As for dosing rates, the table set out here shows how much product to use for various water volumes, depending on the chlorine increase you need. With accurate figures on hand, you can dose your pool with confidence and get reliable results.
These powerful granules demand careful handling. Follow the general precautions closely, from wearing protective equipment while dosing to keeping the product stored in a cool, dry place. This Granular Shock, built on potent Calcium Hypochlorite 70% CL Active, is not something to treat casually.
Understanding the risks matters with any strong product like this. Fire hazards and harm from swallowing are real concerns, so proper handling and storage are essential. Store the granules securely, out of children’s reach, and always follow the safety information provided.
In short, Deep Blue Pro Granular Shock does far more than treat your pool, it takes care of your pool maintenance troubles. Enjoy clean, clear water powered by these granules, trust their effectiveness, follow the application steps closely, and come back to a pool that’s always inviting for a swim. Deep Blue Pro Granular Shock could become your pool’s best kept secret for consistently pristine water.
Manufacturers description:
Deep Blue Pro Granular Shock – A traditional shock treatment product, these calcium hypochlorite granules have an available chlorine level of on average 70% making them a good chlorine donor for pool water problem solving.
Granular Shock Chlorine is very effective at restoring sparkling water from algae infestation.
Granular Shock Chlorine can be added through the skimmer.
Top Tip:As soon as possible after a thunderstorm shock dose your pool with a 5mg/l dose of Deep Blue Pro Granular Shock Granules or Shock ‘n’ Floc Granules.
The reason for this is that lightening creates nitrogen in the atmosphere and the rain washes this nitrogen into your pool. Nitrogen is plant food and algae thrive on it, so pool water can quickly turn green after a thunderstorm, a shock dose of chlorine can help prevent this.
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.
| 70% Shock Chlorine Granules Dosing Rates | ||||
| Water Volumes | To Increase Pool Chlorine Level by | |||
| Litres | Gallons | 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 70% CL Active – EC Label 231-908-7 UN3487
Risk:– 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.
Safety:
– 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.








Safiya McDonald –
Great works a treat, great value will reorder. Happy with it.
Martin R. Akhtar –
Good for first fill of water in hot tub
Grace Murphy –
Transformed my pool works well pleased overall. Would buy again.
Paige Mitchell –
Pool shocker
Z. K. Watson –
Works
Scott Fisher –
Spa shock works well pleased overall. Would buy again. ref 64
Rachel V. Bishop –
Great chlorine with consistent performance performed consistently, worth it.
Sandra Burnage –
It dissolves completely very quickly
Miss U. A. Webb –
Good value
Bethany Malik –
Easy to use works well pleased Happy with it. ref 67
Mr Amber Gallagher –
Chlorine Granules works well pleased overall. Happy with it.
Mrs Gemma Evans –
Top quality really works, well finished would recommend.
Nancy from Florida –
Chlorine
Biffy62 –
Pool protection
Freddie U. McKenzie –
A good buy
Mr N. Johnson –
Very good chlorine with well finished works as described, worth it.
Isobel Das –
Very happy, dependable sanitising. Does the job. Great value.
Cameron S. Mahmood –
Love it, 500g pack works fast. Would buy again. Very effective.
Sana Ross –
Good bags
F. Q. Desai –
Very happy, dependable sanitising 500g pack quick results. Great value.
X. R. Cameron –
Love it, dependable sanitising effective on tough jobs. Will reorder. Ref 570.
Toby Parker –
As described
Ms Owen Z. Ali –
Fast delivery and does the job.
Ms A. Campbell –
Shock
waylander72 –
Would definitely recommend
J Adams –
Chlorine granules
Dr Max R. Campbell –
Works brilliantly, dependable sanitising with 500g pack, strong performance. Would buy again.
Niamh U. Holmes –
Great buy, dependable sanitising. Great value. Looks great.
Finlay Webb-Smith –
Very pleased with product works well pleased overall. ref 85
Hamza Price –
Great buy, dependable sanitising with 500g pack, strong performance. Great value.
Dev Khan-Gibson –
Did the job
Dr Sameer Khan –
To reduce pool problem and clear murky water works well pleased ref 95
Mrs Maisie Edwards –
Tops works well pleased overall. ref 89
Usman Begum –
Works brilliantly, 500g pack, strong performance Will reorder.
Kai Brar –
Great chlorine with good performance gave great results, worth it.
Mr Neha Reed –
Solid product, pro grade performance with 500g pack, reliable treatment. Would buy again.
Dr Maya F. Watson –
Hot tub essential
Kevin Smith-Hill –
Very happy, 500g pack, reliable treatment Would buy again.
Mrs Isha Mitchell –
Buono.
Ryan P. Walsh –
Hot tub essential works well pleased overall. Would recommend.