Owning a hot tub in the UK is a great way to relax, unwind, and enjoy your garden all year round. But to keep your hot tub safe, clean, and comfortable, regular maintenance with the right chemicals is essential. If you’re a first-time owner, the array of chemical options can feel overwhelming. That’s where a hot tub chemical pack comes in — a handy starter kit designed to give you all the essentials in one go.
Here’s a beginner-friendly breakdown of what’s typically inside a hot tub chemical pack and why each component matters.
1. Sanitiser (Chlorine or Bromine)
The most important item in any chemical pack is the sanitiser, which keeps your hot tub water free of harmful bacteria. You’ll usually find either chlorine granules or bromine tablets/granules in the pack.
-
Chlorine is fast-acting and commonly used in hot tubs.
-
Bromine is gentler on the skin and maintains effectiveness at higher temperatures, which many UK users prefer during colder months.
2. pH Increaser & pH Reducer
Hot tub water must be balanced to prevent irritation and protect your equipment. A chemical pack will include both:
-
pH Plus (Increaser): Raises the pH if it’s too low (acidic).
-
pH Minus (Reducer): Lowers the pH if it’s too high (alkaline).
Ideal pH levels should be between 7.2 and 7.6. These chemicals help keep your water comfortable and your hot tub functioning properly.
3. Alkalinity Increaser
Total alkalinity stabilises your pH levels. If your alkalinity is too low, your pH will fluctuate more easily, leading to cloudy water and equipment issues. The alkalinity increaser helps keep everything stable and balanced.
4. Water Test Strips
To maintain your hot tub correctly, you’ll need to test your water at least 2–3 times per week. Test strips let you quickly check chlorine/bromine levels, pH, and alkalinity so you know when to add chemicals.
5. Shock Treatment
Most chemical kits also include a shock treatment—usually a non-chlorine oxidiser. This is used weekly or after heavy use to break down organic contaminants like sweat, lotions, and body oils, keeping your water fresh and clear.
Conclusion
A hot tub chemical pack is a convenient and cost-effective way for UK users to get started with water care. By understanding each component and using them regularly, you’ll ensure your hot tub remains a safe, sparkling oasis no matter the season. Always follow the instructions carefully, and consider investing in a floating dispenser or chemical-safe gloves for even easier maintenance.
