Can I use my hot tub without chlorine or bromine?

Can I Use My Hot Tub Without Chlorine or Bromine?

Technically, yes—you can run a hot tub without chlorine or bromine, but it’s not recommended unless you're using a proven alternative sanitising system. Without a proper sanitiser, your hot tub becomes a warm breeding ground for bacteria, algae, and harmful microbes that can cause skin irritation, cloudy water, or even serious health risks.

What Happens Without a Sanitiser?

• Bacteria and biofilm grow quickly in warm water

• Water becomes cloudy or smelly

• Filters and plumbing clog faster, leading to damage

• Risk of skin infections or hot tub rash increases

What Are the Alternatives?

Some people use systems like UV or ozone combined with minerals or non-chlorine shock, but even these usually require a small amount of chlorine or bromine to be effective. These systems can reduce chemical use—but they don’t eliminate the need for sanitisation entirely.

Spa Fuel PRO Tip:

If you're looking for a low-chemical routine, Spa Fuel essentials can help you keep control with minimal hassle. Stick to a clear, balanced routine, use our colour-coded system to guide you, and always ensure your water is properly sanitised—whether with traditional methods or modern alternatives.

Bottom line: A hot tub without chlorine or bromine isn’t worth the risk. Clean water = safe soaking.

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