Chlorine Granules for Hot tub
Chlorine Granules for Hot tub
Rapidly sanitize and eliminate bacteria for consistently clean and safe spa water.
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Our Chlorine Granules rapidly sanitize, eliminating contaminants and bacteria while dissolving quickly and completely, ensuring consistently clean and safe spa water.

DIRECTIONS FOR USE:
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. This product is designed to dissolve quickly and completely providing a steady source of available chlorine to control the growth of algae, kill bacteria, and destroy organic contaminants.
READ THE PRECAUTIONARY STATEMENTS BEFORE USE:
METHOD OF APPLICATION: Broadcast the product evenly over a wide area in the deepest part of the spa with water circulating.
SPA AND HOT TUB USE:
- Each level teaspoon (0.17 oz.) of this product will provide approximately 1.4 ppm available chlorine in 500 gallons of water.
- Using an appropriate test kit, test and adjust the water to the following values: pH 7.2-7.8, total alkalinity 60-100 ppm, calcium hardness 200 ppm minimum.
- Maintain these conditions for proper spa and hot tub operation by frequent testing with a test kit.
- Do not allow cyanuric acid level to exceed 150 ppm.
- It is recommended that spas and hot tubs be drained every 30-90 days. More often under heavy use.
- Consult manufacturer’s recommendations concerning the compatibility of chlorine sanitizers with their equipment.
- Some oils, lotions, fragrances and cleaners may cause foaming or cloudy water and may react with chlorine sanitizers to reduce their efficacy.
START-UP (FRESHLY FILLED)
- Turn on the circulation system and ensure that it is operating properly.
- Add 6 tsp. of this product for each 500 gallons of water.
- Check the free available chlorine (FAC) and, if below 4-5 ppm, repeat as needed.
- Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine.
REGULAR USE:
- Turn on the circulation system and ensure that it is operating properly.
- Scatter approximately 3 teaspoons per 500 gallons of this product over the surface of water.
- Always use a clean dry spoon.
- Test for FAC and add additional product, if necessary, to attain 4-5 ppm FAC.
- Maintain 1-3 ppm FAC while the spa or hot tub is in use.
- After each use, shock treat with 9 teaspoons per 500 gallons water to control odors and algae.
- Repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine.

Can I use AquaDoc Chlorine Granules in both hot tubs and spas?
Yes, AquaDoc Chlorine Granules are designed for use in both hot tubs and spas. They effectively treat any buildup and are versatile for different types of water systems.
How often should I add AquaDoc Chlorine Granules to my hot tub or spa?
The frequency of adding AquaDoc Chlorine Granules depends on usage and water conditions. Typically, you should add granules regularly to maintain the recommended chlorine levels. Frequent testing and adjustment ensure consistently clean and clear water.
Are AquaDoc Chlorine Granules safe for my hot tub or spa equipment and plumbing?
Yes, AquaDoc Chlorine Granules are formulated to be safe for hot tub and spa equipment and plumbing when used as directed. Following the recommended dosage and application guidelines will help prevent any harm to your equipment and maintain its longevity.
Why is AquaDoc the Best in Pool Chemicals?
- 🌿 Paraben free & Aluminum free
- 📦 Fast Shipping
- 🇺🇸 Made in the USA
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Never received them
Chlorine granules never came.

Nice product
I use in my hot tub and didn’t need as much as much as my usual brand and the water tested perfect. Just a little expensive but everything costs more now.

Chlorine for you Hot Tub
This is a one pound bottle of granulated chlorine. It pretty well matches ingredients of other chlorine bottles I have on hand. You typically only need a few teaspoons after each use of your tub. So a one pound bottle will last quite a while. I typically purchase 2 pound bottles in order to save on the costs., since chlorine is the most used item I use on my hot tub.

Good price for a hot tub necessity!
I turned to Amazon for chlorine granules on Amazon during Covid when I would find empty shelves or inflated prices in my pool supply store. That hasn't changed yet! This AquaDox chlorine is priced reasonably and arrived quickly. The bottle was safety sealed for freshness, which I appreciate. One whiff and I could tell it was fresh and stable. I learned the hard way that chlorine can and does lose effectiveness when unprotected. The has a nice wide mouth for measuring and dispensing.The instructions are mislabeled, in my opinion. Each 3 tsp. dose is sufficient for 500 gallons of water at a treatment time. I hope there are no novices out there thinking they must use the entire one pound container. This will last me at least a month with frequent tub usage.

Nice high level of chlorination….
This certainly raises my chlorination levels easily in my spa. This works good, if I keep my jets running for a while. However, they are slightly larger granular and may sit on the hot tub’s seat of floor.Trust you found this review honest and helpful:-)
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