
Sirona® Activate Granular
Product Overview
A proven choice for oxidizing spa contaminants without the harsh odors associated with traditional chlorine shocks.
Sirona Activate Granular is a non-chlorine oxidizer featuring 32.2% Potassium Peroxymonosulfate, designed specifically as Step 2 in a bromine purification system. In our experience, this fast-dissolving formula reliably handles organic buildup from oils and lotions while maintaining water clarity in 2.2 lb and 5 lb containers. Unlike standard chlorine, it breaks down waste without affecting pH or adding stabilizer, making it a standard specification for high-use hot tubs.
Benefits & What Makes It Different
32.2% Potassium Peroxymonosulfate
This active ingredient provides powerful oxidation to eliminate organic contaminants and odors without the need for chlorine.
The 2 in 2-Step System
Specifically formulated for the 2 in 2-step bromine process, it activates bromide salts to maintain a consistent sanitizer bank.
Zero CYA Impact
Because this is a non-chlorine shock, it does not add cyanuric acid or calcium, preventing long-term water balance issues in smaller spa volumes.
Product Details
Potassium Peroxymonosulfate 32.2%
Add 2 oz per 500 gallons (approx. 2.5 lbs. per 10,000 gallons for scaling) to oxidize contaminants.
Compatibility
- Compatible with bromine, chlorine, ozone, and mineral systems
- Do not mix directly with other chemicals in the same container
When To Use This
Pro Tip
In regions with high humidity, keep the lid tightly sealed on your 2.5 lbs. or 5 lb container to prevent the granules from clumping, as this product is highly hygroscopic.
Common Questions & Instructions
How often should I use Sirona Activate Granular in my spa?
For routine maintenance, we recommend adding this oxidizer weekly or after heavy use to clear cloudy water and neutralize odors.
Can I use this product if I have a chlorine-based spa?
Yes, this Potassium Peroxymonosulfate formula is compatible with chlorine, ozone, and mineral systems, though it is the primary activator for bromine.
How long do I need to wait to use the spa after adding this shock?
Since it is a non-chlorine oxidizer, you can typically resume spa use within 15 minutes, provided the sanitizer levels are within the safe range.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



