Hot Tub Water Sanitizers
Sanitisers and Oxidisers to ensure your spa is free of bacteria and kept crystal clear, as the day you had it first installed.
All prices include VAT and we offer FREE delivery for orders over £50.
| Spa Stabilised Chlorine | Description | Code: CH005 |
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Granules 500g These stabilised chlorine granules dissolve rapidly making their application easy. The granules have a pH value of about 6–7, which is fairly close to the ideal spa water pH level and so will have little effect on the pH levels of the water in you spa. |
£6 |
| Spa Stabilised Chlorine | Description | Code: CH006 |
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Granules 1kg Same as above but twice the amount, providing better value for money. |
£9 |
| Spa 20g Chlorine | Description | Code: CH007 |
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Tablets 1kg These 20g chlorine tablets should be dosed using a floating dispenser. The floating dispenser will dispense the correct amount of chlorine into the spa to maintain the ideal level of chlorine between 3 to 5mg per litre of water and all you need to do is top up the floating dispenser with new tablets as and when required. These chlorine tablets are designed to maintain chlorine levels, as they are slow dissolving, so before using them the correct chlorine level should be established using the Spa Stabilised Chlorine Granules above. |
£14 |
| Pool/Spa Chlorine | Description | Code: CH008 |
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Granules 5kg These Stabilised Chlorine Granules add chlorine to the water just like any other sanitiser but it also adds stabiliser at the same time. It has a pH close to neutral 6-7 so that it will have little effect on the ph of the pool water. The best way to add it to the pool is to dissolve the required amount in a bucket of warm water first. |
£25 |
| Spa Bromine | Description | Code: CH010 |
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Granules 500g These bromine granules are a highly effective sanitiser formulated to kill and prevent bacteria and algae growth in a spa. Being a granular product it is easy to vary the dose rate to suit requirements. These granules have a fairly neutral pH so won’t upset the water balance. |
£8 |
| Spa Bromine | Description | Code: CH009 |
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Tablets 1kg These bromine tablets should be dosed using a floating dispenser. The floating dispenser will dispense the correct amount of bromine into the spa to maintain the ideal level between 3 to 5mg per litre of water and all you need to do is top up with new tablets as and when required. These bromine tablets are designed to maintain bromine levels, as they are slow dissolving, so before using them the correct bromine level should be established using Spa Bromine Granules above.
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£15 |
| Chlorine Tablets | Description | Code: CH042 |
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200g 5kg These 200g chlorine tablets are provided in a 5kg pot. |
£50 |
| Bromine Tablets | Description | Code: CH032 |
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200g 5Kg These 200g bromine tablets are provided in a 5kg pot. |
£50 |
The reason that sanitisers are used in spas is to ensure that the water is hygenic by preventing and killing bacteria. This is achieved by continuously and consistently maintaining a level of sanitiser (disinfectant) in the water with either chlorine or bromine.
Chlorine
Chlorine is a commonly used chemical to achieve satisfactory bacteriological and chemical purity in spas. It must be present in the ‘free’ form to kill bacteria and oxidise organic matter derived from bathers. Provided the water is balanced, see water balance, chlorine levels of between 3 to 5 mg per litre of water is sufficient to maintain healthy, clean water. A well managed chlorine treated spa will have no odour and levels of chloramines (combined chlorine) of less than 0.5mg/l.
Combined chlorine is created as a result of a reaction between free chlorine and organic matter and is a mixture of Monochloramine, Dichloramine and Nitrogen Trichloride. The latter is mostly produced when the water is not being treated adequately and gives rise to the ‘chlorine’ odour.
Bromine
Bromine is similar to chlorine in its effectiveness as a sanitiser but there are some important differences that make it an ideal product for using in a spa:
Bromine tablets should be dosed into the spa via a floating dispenser.
Bromine, like chlorine, combines with organic compounds to form bromamines, but unlike chloramines, bromamines cause little or no eye, skin and nasal irritation. Also there is not the pungent smell sometimes associated with certain types of chloramines.
Bromine retains better levels of efficiency over a wider pH band than chlorine, see chart below, which makes it ideal for spas as the pH can fluctuate a fair amount.
Aqua Spas provide water treatment products at the lowest possible prices for cheap and efficient hot tub water maintenance.













