Description
This is the 50Kg option of Shock Chlorine Granules ideal for spas and hot tubs.
Deep Blue Shock Chlorine Granules are ideal for hot tubs and spas, keeping the water crystal clear and safe so you can relax and enjoy it. This powerful formula is designed to target and remove contaminants like bacteria, algae and chloramines, keeping your spa water in top condition.
Shock, or super chlorination, plays a big part in water maintenance. Whether you’re filling your spa for the first time, bringing it back into use after a break, or dealing with heavy use, these Shock Chlorine Granules are the product to turn to. A shock treatment resets and refreshes your spa water, giving you a clean, hygienic environment to relax in.
Staying on top of maintenance keeps your spa water at its best. We recommend shock treating the water at least every 2 weeks, more often if your spa gets heavy use. These granules are built for hot tubs, dissolving quickly and thoroughly in warm water for fast, even distribution.
While designed mainly for hot tubs and spas, these Shock Chlorine Granules can also be used in swimming pools for similar sanitation benefits. For pool use, pre-dissolve the granules in warm water before adding them, which supports better dispersion, quicker action and the best results.
One of the best things about Deep Blue Shock Chlorine Granules is how convenient and easy they are to use. Available in a range of tub sizes, you’ll always have a good supply of high-quality Shock Chlorine ready whenever your water needs a lift. The granular form dissolves fast, saving you time and effort on spa upkeep.
Bringing these Shock Chlorine Granules into your spa routine helps protect the long-term performance of your hot tub or spa. Leave cloudy or smelly water behind and enjoy a clean, welcoming spa you can relax in with confidence.
Get more from your spa with Deep Blue Shock Chlorine Granules, a dependable, effective way to keep pool and spa water clean, clear and healthy. Rely on shock chlorination to keep impurities out of your spa water, so you can unwind in a hygienic, inviting setting.
Choose quality, convenience and Deep Blue Shock Chlorine Granules for your pool, hot tub or spa maintenance. See what a superior shock chlorine treatment can do to bring your spa water to a new level of purity and freshness.
USAGE INSTRUCTIONS:
Prior to using this product, adjust the pH levels to the ideal range of 7.2 – 7.6 to promote bather comfort, plant protection and effective chemical use.
Maintain free chlorine residuals within the range 1-3mg/l (ppm) for pools and 3-5mg/l (ppm) for spas.
Freshly filled spas or those left without use for a period of time will require an initial start up dose of free chlorine of 10mg/l (ppm) for pools and 20mg/l (ppm) for spas.
This product may be applied directly to spas where temperatures exceed 20 degrees C. For swimming pools or if below this temperature pre-dissolve this product in a clean plastic container to a maximum rate of 10g of product per 0.2 gallons (1 Litre) of warm water. Stir well to ensure product is fully dissolved to prevent any bleaching of the pool liner. Add the resulting solution to the water whilst the pump(s) are turned on, near the water inlets to aid distribution. Repeat dose application if necessary to achieve levels as shown above.
SHOCK DOSE RATES:
Small Spa 1000 litres (220 Gallons) of water
– add 20g to increase chlorine level by 10mg/l(ppm) or 40g to increase chlorine level by 20mg/l(ppm) for spas.
Large Spa 1500 litres (330 Gallons) of water
– add 30g to increase chlorine level by 10mg/l(ppm) or 60g to increase chlorine level by 20mg/l(ppm) for spas.
Small pool 40,000 litres (8,800 Gallons) of water
– add 800g to increase chlorine level by 10mg/l(ppm) for pools.
Large pool 60,000 litres (13,200 Gallons) of water
– add 1200g to increase chlorine level by 10mg/l(ppm) for pools.
SAFETY WARNINGS:
Harmful if swallowed.
Causes serious eye irritation.
May cause respiratory irritation.
Very toxic to aquatic life with longlasting effects. Warning! Do not use together with other products.
May release dangerous gasses (chlorine). Use biocides safely. Always read the label and product information before use.
If medical advice is needed, have product container or label at hand.
Contact with acid liberates toxic gas.
Keep out of the reach of children.
Avoid breathing dust/fume/gas/mist/vapours/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF SWALLOWED: Call a POISON CENTRE/doctor if you feel unwell.
If INHALED: Remove person to fresh air and keep comfortable for breathing.
If in EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do so. Continue rinsing. Get medical advice/attention.
Storage: Store locked up.










Ms Matthew Thomas –
Experience worth every penny works well pleased overall. ref 49
Mrs James Kelly –
Five star, 2kg tub pro grade performance reliable treatment. Spot on.
Rory Kaur –
Love it, dependable sanitising effective on tough jobs. Will reorder. Ref 110.
Ella Johnstone –
Works brilliantly, pro grade performance quick results. Does the job. Ref 57.
Ms Simon Mehta –
Prompt delivery and easy returns. works well pleased overall. ref 25
Amina Marshall-Khan –
Cutting edge pool gear works well pleased overall. ref 42
Zoe Harper –
Superior pool innovation works well pleased overall. ref 33
Ms Peter Khan –
Superior product quality works well pleased overall. ref 28
Ms Vikram Sharma-Williams –
Cleared algae haze by morning • sealed properly
Mr Adam Hunt-Ali –
So pleased, 1kg tub dependable sanitising strong performance. Highly recommend.
Nigel Bishop –
Quick delivery; helpful after-sales support; easy to get right first time…
X. Richards –
Outstanding pool experience works well pleased overall. ref 12
Ellis Singh-Cooper –
Prompt delivery and easy returns.
Beatrice S. Cox –
So pleased, pro grade performance effective on tough jobs. Does the job. Ref 80.
Bryan Poxon –
Tidy job
Dr Craig Ahmed –
Water sorted in hours, sent out same day • would reorder
Ms Daniel Ali –
Quick order, exceptional service works well pleased overall. ref 54
Ms B. Bishop –
Engineered for a superior pool experience
Ahmed W. Martin –
Water sorted pretty fast – feels premium
Jai Moore –
Solid product, 5kg tub, reliable treatment. Great value.
Miss Lauren N. Hughes –
Shifted the murk pretty fast • good aftersales
Sebastian Begum –
Designed for exceptional longevity and style.
Ms Sonia Y. Ahmed –
Outstanding quality, fantastic service, quick delivery, and hassle free returns.
Matthew Gill –
High quality, quick delivery, and outstanding service.
Mrs Layla Kapoor –
Designed for exceptional longevity and style. works well pleased ref 41
Miss Louise Howard –
Rapid service, excellent delivery works well pleased overall.
Haris Phillips-Doyle –
Delivered really fast; the feels well made; easy to use!
Lachlan T. Malik –
A product that stands out in quality works well pleased ref 26
Miss Daniel N. Wood –
Innovative and reliable product design. works well pleased overall. ref 59
Sanjay F. Sharma –
Remarkably fast delivery works well pleased overall. ref 31
Colin Lee-Baker –
Quality that impresses
Dr Sunil Doyle –
Impressive performance and service
IanBower –
I am thankful for the easy returns policy
MarkT –
It’s well made
Dr Chloe Singh –
Where quality meets reliability seamlessly. works well pleased overall. ref 13
Mrs Louise King-Chapman –
Very durable product works well pleased overall. Pleased overall. ref 46
Mrs Sanjay Fisher-Lee –
Water brought back in hours; fresh stock
Miss Leah Taylor –
A remarkable blend of style and durability
Florence J. Mehta –
Shifted cloudiness next day • no leaks
Mr Amber Anderson –
Quality pool equipment you can trust