Can you use chlorine tablets in a hot tub? The answer is yes! Chlorine tablets are a safe and effective way to keep your hot tub clean and free of harmful bacteria.
Understanding Chlorine for Hot Tubs
When it comes to keeping your hot tub clean, chlorine is a go-to sanitizer. It’s essential to know that chlorine comes in two main forms: tablets and granules. Each type works differently to fight off germs and keep your water sparkling clean.

Use Chlorine Tablets In a Hot Tub Water

Chlorine tablets are commonly used in hot tubs to maintain the level of chlorine in the water.
The recommended range for chlorine in spa water is 3-5ppm, which can be easily achieved by using various sizes of chlorine tablets.
It is important to regularly test the water and adjust the chlorine levels accordingly.
Chlorine Granules

In contrast, chlorine granules are small, bead-like particles that dissolve quickly when you add them to the water.
This fast-acting approach is perfect when you need to get your hot tub ready in a hurry. Perhaps you’ve just decided to have an impromptu spa session or you’ve returned to a hot tub that’s been unused for a while.
Granules are great for less frequent users or when you’re looking to boost the chlorine levels swiftly to ensure the water is safe and clean.
Which One Is Right for You?

When deciding between chlorine tablets or granules for your hot tub, consider factors such as the size of your hot tub, the level of bacteria present, and your preferred method of application.
Chlorine tablets, especially the 200g large chlorine tablet, are great for larger hot tubs and swimming pools, as they slowly dissolve in a floater or feeder.
But, for smaller inflatable hot tubs or those with high levels of chlorine, granular chlorine or shock may be more suitable.
Understanding Chlorine Granules for Your Hot Tub

Maintaining a clean and healthy hot tub is essential, and using chlorine granules is a popular method to keep the water sanitized.
Chlorine granules or chlorine shock can be added to your hot tub using a chlorine feeder or a skimmer to kill off any bacteria in a hot tub.
For hot tub usage, it is recommended to use 20g chlorine tablets instead of large 200g swimming pool tablets. These small 20g chlorine tablets will dissolve slowly and can be easily added to your hot tub according to its size and hot tub users.
When to Add Chlorine Granules?

The best time to add chlorine granules is when your hot tub water is warm, ideally above 20°C (68°F). Warm water helps the granules dissolve more easily.
However, you must be careful during this process. If the granules don’t fully dissolve and remain on the surface, they could potentially harm the hot tub’s lining or surface.
Safe Dissolving Method
To avoid any damage to your hot tub, it’s a good idea to dissolve the chlorine granules before adding them to the water. Here’s a simple way to do it:
- Get a clean bucket and fill it with water from your hot tub.
- Sprinkle the required amount of chlorine granules into the bucket.
- Stir the water gently until the granules are completely dissolved.
Once the granules are dissolved, slowly pour the chlorine solution into the hot tub.
This method ensures an even distribution of chlorine and protects the hot tub surface from any undissolved particles.

How Much Chlorine to Use
When it comes to sanitising your swimming pool or acrylic hot tub, the amount of chlorine you use depends on factors such as water temperature and the type of dispenser you have.
Acrylic hot tub manufacturers typically recommend maintaining a chlorine level of 3-5ppm in your hot tub to effectively sanitise the water and kill bacteria.
Testing the Water
After adding chlorine to your hot tub, test the water to ensure safe levels (3-5 ppm). Use test strips or a liquid test kit.
It is important to maintain a proper balance of chlorine in your hot tub to kill any bacteria. If the chlorine level is too high, it can be acidic and irritating to the skin.
Use the recommended 3-5ppm on your chlorine test for a ph neutral and sanitised hot tub.
Conclusion
So, can you use chlorine tablets in a hot tub? Absolutely! Chlorine tablets can be used in a hot tub as a sanitiser to keep the water clean and free from bacteria.
However, it is important to regularly test the alkalinity levels and adjust as needed to prevent skin irritation.