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Shocking your hot tub allows you to add a high dosage of your chosen sanitising chemical to your spa to establish clean and properly balanced water. Browse our range of hot tub chemicals and shock treatments to enjoy your hot tub to the fullest.
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Chlorine shock is one of your main weapons against dirty, cloudy and bacteria-ridden water. The most common method for shocking your hot tub involves chlorine shock granules, which can be easily added to the surface of the water. Hot tub shock can be added every week or every fortnight to help maintain proper hot tub chlorine levels.
We also offer non-chlorine spa shocks, which break down the contaminants in your water via oxidation rather than being classed as a sanitiser like chlorine. Non-chlorine shocks can be used in spas that run with chlorine or hot tub bromine sanitisers and may be preferable to chlorine shocks because they do not have the same strong odour.
Non-chlorine shock treatments are ideal for incorporating into your regular maintenance routine.
We would recommend shocking your hot when it is first filled or refilled, after a period of heavy usage, when you see signs of algae and if there is a general reduction in water quality. Before adding your shock granules or sachet, make sure you carefully read the dosage and application instructions on the product.
You should turn your pump and filter system on while adding the shock to ensure the chemicals are evenly distributed throughout the water. After 24 hours, check your chlorine levels – the ideal range is 3-5 ppm – you can start using the hot tub again once the correct levels have been achieved.
For more insight into caring for your hot tub, please see our guide to hot tub chemicals.