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Writer's pictureAeron Spa Care

Chlorine or Bromine?

Updated: Sep 28, 2023

Owning a hot tub can be a luxurious and relaxing experience, but it also comes with a responsibility, keeping the water clean and safe for you and your guests. To achieve this, you'll need a reliable sanitiser, and two popular choices are chlorine and bromine. In this blog post, we'll compare these two common hot tub sanitisers to help you make an informed decision.


A hot tub


Chlorine: The Classic Sanitiser


Effectiveness:


Chlorine is a well-known and highly effective sanitiser. It works by releasing free chlorine ions into the water, which destroy harmful bacteria and micro-organisms, keeping your hot tub water clean and safe.


Cost:


Chlorine is generally more affordable than bromine, making it a cost-effective choice for hot tub owners on a budget.


Maintenance:


Chlorine levels need to be monitored regularly, and you may need to adjust them more frequently. Weekly testing and occasional shock treatments are necessary to keep the water balanced.


Odour and Irritation:


Chlorine can produce a strong odour and cause skin and eye irritation, especially at high levels. Some people find the smell of chlorine unpleasant, which can detract from the hot tub experience.


Bromine: The Alternative Sanitizer


Effectiveness:


Bromine is also an effective sanitizer, though it works differently from chlorine. It releases bromine ions, which are less affected by temperature and pH changes, making it a more stable option for hot tubs.


Cost:


Bromine is typically more expensive than chlorine, both upfront and in ongoing costs, as it tends to be less concentrated and may require more product.


Maintenance:


Bromine levels are more stable than chlorine, which means less frequent monitoring and adjustment. However, you'll still need to test and adjust bromine levels regularly.


Odour and Irritation:


Bromine has a milder odour than chlorine, making it a more pleasant option for some users. It is also less likely to cause skin and eye irritation, making it a better choice for those with sensitive skin.


A man swimming in a swim spa
Swimmer in a swim spa

Choosing the Right Sanitizer for Your Hot Tub


Ultimately, the choice between chlorine and bromine for your hot tub comes down to your personal preferences, budget, and specific needs. Here are some factors to consider when making your decision:


Budget: If cost is a significant concern, chlorine is the more economical choice. However, if you're willing to invest a bit more, bromine offers stability and less maintenance.


Ease of Use: Bromine can be more user-friendly due to its stability, requiring less frequent adjustments. Chlorine demands more vigilance but can still be manageable with proper testing and maintenance.


Sensitivity: If you or your hot tub users have skin or eye sensitivities, bromine's milder odor and lower irritation potential may make it the preferred option.


Temperature: If you maintain your hot tub at a higher temperature, bromine may be more effective, as it remains stable at elevated temperatures.


Initial Investment: Consider the cost of the sanitizer itself and any necessary equipment for your choice.


Conclusion


Both chlorine and bromine are effective sanitisers for hot tubs, and each has its own set of advantages and disadvantages. Ultimately, the decision should align with your specific preferences, needs, and budget. Whether you opt for the classic chlorine or the stability of bromine, regular testing, and maintenance are essential to ensure your hot tub water remains safe, clean, and enjoyable for all.


What we recommend


Chlorine Granules - Aquasparkle Chlorine Granules 1kg - Amazon

Chlorine Tablets - Aquasparkle Chlorine Tablets 1kg - Amazon


Bromine Granules - Aquaspakle Bromine Granules 1kg - Amazon

Bromine Tablets - Aquasparkle Bromine Tablets 1kg - Amazon

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