Description
This listing covers the 5kg size.
Deep Blue Pro Granular Shock brings crystal clear pool water within easy reach. These calcium hypochlorite granules pack a powerful 70% available chlorine level, dealing quickly with common pool water problems. Say farewell to algae infestations and welcome back sparkling, inviting water with Granular Shock Chlorine.
Imagine the days after a thunderstorm, when nitrogen washed into your pool risks turning the water an uninviting green. That’s exactly when Deep Blue Pro Granular Shock earns its keep. A prompt dose, whether from the Granular Shock Granules or the Shock ‘n’ Floc Granules, can rescue your pool from post storm algae blooms.
Let’s look at how to apply this product to get the most from it. From keeping pH within the ideal range to maintaining the recommended free chlorine residuals, each step plays its part in achieving perfect, pristine pool water. Pre dissolve the granules, add the resulting solution to your pool, and let it get to work, just keep the filtration pump running so any temporary cloudiness clears.
Wondering about dosing rates? The dosing table included here sets out how much to use across different water volumes, based on the chlorine level increase you’re after. With exact measurements to hand, you can dose your pool confidently for the best results.
Handling these powerful granules calls for care. Stick to the general precautions, wearing the right protective gear while dosing and storing the product somewhere cool and dry. This Granular Shock is a serious product, built around potent Calcium Hypochlorite 70% CL Active, a real force against pool contaminants.
As with any strong product, it pays to understand the risks involved. From fire hazards to harm if swallowed, careful handling and storage aren’t optional. Keep these granules stored securely away from children, and always follow the safety guidance for worry free pool cleaning.
All told, Deep Blue Pro Granular Shock does more than just treat your pool, it solves your pool maintenance headaches. Step into a world of clean, clear water backed by the power of these granules. Trust their efficiency, follow the application steps carefully, and enjoy a pool that’s always ready for a refreshing dip. Let Deep Blue Pro Granular Shock 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.








mark bolton –
Shocking
Miss Mohammed Wood –
Works brilliantly, dependable sanitising with pro grade performance, quick results. Does the job.
K. A. Sandhu –
Really impressed, pro grade performance reliable treatment. Would buy again. Ref 387.
David Brand –
Spa shock
Mrs Muhammad Thomas –
Top quality chlorine with consistent performance performed consistently, would recommend.
Fraser M. Iyer –
Done the job works well pleased overall. Pleased overall. ref 82
Rosie Scott –
Love it, pro grade performance with dependable sanitising, strong performance. Would buy again.
Mr Aidan Mason –
Excellent choice, dependable sanitising with 1kg tub, quick results. Great value.
B. J. Turner –
Let down well finished, made a real difference not worth it.
Miss Hassan D. Evans –
Love it, pro grade performance quick results. Does the job. Ref 368.
Thomas James –
Kids pool works well pleased overall. Would recommend.
Martin Graham-Lloyd –
Solid product, 1kg tub dependable sanitising strong performance. Does the job.
Musa Stewart –
Must have for pools works well pleased overall. Would buy again.
Adam Hughes –
Great stuff 4 clean pools
Dr Gurpreet Kennedy –
Did the trick works well pleased overall. Would buy again.
Mr Isaac X. Hussain –
So pleased, dependable sanitising works fast. Spot on. Ref 201.
Sunny808 –
Great price
Dr Paul Howe –
Bucket of chlorine
der Jörg –
Very powerful
Paige Akhtar –
So good chlorine with well finished performed consistently, would recommend.
F. X. MacLeod –
Wow works well pleased Would buy again. Pleased ref 77
Mr Damian Hall –
Five star, 1kg tub effective on tough jobs. Will reorder.
Rohan R. Ali –
So pleased, 1kg tub with dependable sanitising, strong performance. Would buy again.
G. U. Green –
Fab I Lous
Mrs Niamh S. Robertson-Bhat –
Delivered on time
Tariq Q. Siddiqui –
Excellent choice, 1kg tub effective on tough jobs. Highly recommend.
Kira Howey –
Good product fast delivery
Mrs Matthew F. Douglas –
is what it says
Ms Phoebe O. Ross –
Solid product, 1kg tub, effective on tough jobs Spot on.
P. G. Russell –
So pleased, 1kg tub dependable sanitising. Will reorder.
Mrs Martin Hall –
Excellent choice, 1kg tub, strong performance Spot on.
Mr Stewart Martin –
Great buy, 1kg tub, works fast Would buy again. Very effective.
T. W. Jones –
Non chloride shock works well pleased overall. Pleased overall.
Jake EEE –
Great product.
Theo Mahmood –
Great advice from the team; boxed nicely; arrived in perfect condition
Orla Iyer-Kennedy –
Very happy, 1kg tub pro grade performance strong performance. Does the job.
Mr Teddy Anderson –
So good chlorine with great value did the job, happy with it.
Miss Leah M. Hussain-Mason –
Very good really works, nice quality worth it. Pleased overall.
Mrs S. Chowdhury –
Love it, dependable sanitising with 1kg tub, reliable treatment. Does the job.
Mr Khalid McLean –
Got the pool back on track works well pleased ref 30