
Sirona® Simply Sanitizer
Product Overview
A proven choice for spa owners seeking reliable bacteria control without chlorine or bromine.
Formulated with 20% Poly(hexamethylenebiguanide) hydrochloride, this 16 fl oz bottle of Sirona Simply Sanitizer provides effective microbial control for hot tubs without using chlorine or bromine. In our experience, it offers a gentle, stable alternative for bathers sensitive to traditional halogens. Startup requires an initial dose of 1 oz per 150 gallons of water to establish a 50 ppm target level.
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Benefits & What Makes It Different
20% Active Biguanide Formulation
Delivers powerful bacteria control using biguanide chemistry without creating chloramines or harsh chemical odors.
100% Chlorine and Bromine Free
Eliminates reliance on bromine and chlorine, making it gentler on sensitive skin, eyes, and spa components.
Precise Maintenance Dosing
Maintain clear water easily with a maintenance rate of 0.2 oz per 150 gallons to boost sanitizer levels by 10 ppm.
Product Details
Poly(hexamethylenebiguanide) hydrochloride 20%
Initial dose: 1 oz per 150 gallons (50 ppm). Routine maintenance: 0.2 oz per 150 gallons (10 ppm) when reading drops to 30 ppm.
Compatibility
- Incompatible with chlorine, bromine, ionizers, and copper algaecides
- Compatible with Sirona Simply Oxidizer and Simply Waterline Control
- Requires a clean drain and refill before converting from halogen systems
When To Use This
Pro Tip
In warmer climates or hard water regions, biguanide degrades faster under heavy bather loads; test weekly and never let sanitizer fall below 30 ppm to avoid bio-film buildup.
Common Questions & Instructions
How do I start up my spa with Sirona Simply Sanitizer?
First, drain and thoroughly clean the spa and filter to remove any residual chlorine or bromine. Refill with fresh water, balance the pH to 7.2–7.6 and total alkalinity to 80–120 ppm, then add 1 oz per 150 gallons to establish a target concentration of 50 ppm.
How often should I add maintenance doses of Sirona Simply Sanitizer?
Test weekly using biguanide test strips. Whenever the concentration drops to 30 ppm or lower, add 0.2 oz per 150 gallons of spa water to raise the level by 10 ppm.
Can I mix Sirona Simply Sanitizer with chlorine or bromine shocks?
No. Biguanide sanitizers react negatively with chlorine, bromine, copper algaecides, and ionizers. Always use a hydrogen peroxide oxidizer like Sirona Simply Oxidizer.
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.



