Hot Tub Shock
A hot tub shock product removes dissolved organic matter and non-filterable waste from the water, for example perspiration, urine or decomposing flies. No-one wants to relax with that in the water!
In a small move towards a better planet we ask you to consider using the non-chlorine options first.
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surespa Non-Chlorine Shock - 1kg£19.95
These chlorine-free shock granules will remove the organic contaminants that inevitably enter hot tub water when a hot tub is used. This can include airborne pollutants as well as substances introduced by bathers, such as perspiration and body oils.
If your water starts to look a bit dull or slightly coloured surespa Non-Chlorine shock is the product to use.
Completely chlorine-free and kind to both your skin and the environment. Compatible with all hot tub sanitisers.
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surespa Spa Shock Express - 500g£24.95
surespa Spa Shock Express is a very powerful and fast reacting hot tub shock and water clarifier that will quickly remove the organic contaminants that inevitably enter the water when a hot tub is used. These include airborne pollutants and substances introduced by bathers, such as perspiration and body oils.
Enhances water quality.
Equivalent to over 14 sachets of Aquasparkle Spa Fusion.
Compatible with all hot tub sanitisers. Will not affect water balance.
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AquaSPArkle Non-Chlorine Shock - 1kg£25.95
AquaSPArkle non-chlorine shock treatment is ideal for regular application to spa and hot tub water to remove non-filterable, organic contaminants from hot tub water.
These contaminants include perspiration, dead skin cells and other caused by simply using the hot tub. If not removed they will ultimately lead to dull, cloudy and possibly foaming water.
Use weekly or after heavy spa use.
Because this product contains no chlorine or bromine hot tub use can resume immediately after application.
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AquaSPArkle Spa Fusion AquaSachet£2.95 Multi-buy price: £2.65
Aquasparkle Spa Fusion is an easy-to-use, measured sachet of fast reacting shock treatment for the rapid recovery of dull or foamy hot tub water and enhanced water clarity.
Spa Fusion destroys soluble, organic matter in your hot tub water leaving your hot tub water sparklingly clear.
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Why is a shock needed?
During hot tub use organic pollutants from bathers and their costumes unavoidably become dissolved in the water. These contaminants can include perspiration, body lotions, make-up, urine, soap and fabric conditiioner from costumes. Because these contaminants dissolve in the water they cannot be removed by the filter and so they continually accumulate until they eventually make the water dull, cloudy or foamy.
What does a hot tub shock do?
A hot tub shock is a chemical that you can add to the water to remove these pollutants by oxidising them. In scientific terms, this means that the shock takes electrons from the pollutants and this process will breaks down the chemical bonds in the polluting substances allowing them to precipitate out of solution more readily.
A shock will also reactivate chlorine or bromine sanitiser by breaking apart the the bi-products of the sanitation process, the smelly chloramines or bromamines, and so producing more 'free' sanitiser.
There are three common types of hot-tub shock ...
- Non-chlorine shock, such as Surespa Non-Chlorine Shock. This is a straight-forward Potassium Peroxomonsulphate oxidiser which can be used regularly to break down pollutants. It also breaks down chloramines or bromamines to generate more free sanitiser. It is mild, non-toxic and much the preferred means of shocking hot tub water. The hot tub can be used 5 - 10 minutes after application. Non-chlorine shock can be used with any sanitiser.
- Chlorine-based shock, such as Surespa Spa Shock Express. This product contains Triclosene Sodium which, when dissolved in water, gradually releases hypochlorous acid, a potent form of active chlorine that acts as both a disinfection boost and an oxidiser to break down pollutants. Toxic fumes can be released when this product is used and the tub should not be used for at least an hour after use. The benefit of Spa Shock Express over Non-Chlorine Shock is that it can be more effective in treating heavy contamination. Spa Shock Express can be used with any Hot Tub Sanitiser.
- Calcium Hypochlorite. This is a non-stabilised chlorine that is added to the water to raise the chlorine level, or super-chlorinate, the water. This approach can only be used if you are using chlorine as your every-day sanitiser and you will have to wait until the chlorine level has returned to a safe 1-3ppm before you enter the water again. There are many reasons why it's not a good idea to super-chlorinate a hot tub, including skin irritation, eye discomfort, and breathing issues, as well as damage to the tub itself by corroding metal components, damaging pillows and bleaching surfaces
How often should I shock my Hot Tub Water?
The answer to this is: as often as needed. There is nothing wrong with having a regular weekly or fortnightly shocking regime, but it probably isn't strictly necessary, and if you find that it is you should really be asking yourself where the pollutants are coming from and how can you minimise them.
In the interest of minimising chemical use the recommendation is to just use a shock as required when your water starts to look dull or get a bit foamy.
Always try a shock product first if the water starts to foam and only use an anti-foam as a last resort.