
Sirona® Spa Up
Product Overview
A fast-dissolving alkalinity and pH increaser that spa technicians rely on to stabilize water balance.
Sirona® Spa Up is a premium granulized product designed to safely raise the pH and total alkalinity in spas and hot tubs. Packaged in a convenient 2 lbs. container, this formula consists of 100% Sodium Bicarbonate to buffer water chemistry and lock alkalinity into the target 80–120 ppm range. It prevents equipment corrosion, eliminates acidic bounce, and maintains sanitizer efficiency across chlorine, bromine, and ozone systems.
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Benefits & What Makes It Different
100% Sodium Bicarbonate
Pure active ingredient raises total alkalinity safely without causing sudden pH spikes or clouding water.
2 lbs. Granular Formula
Quickly dissolves directly into spa water with jets running, eliminating the need for pre-mixing in buckets.
Sanitizer Compatibility
Fully compatible with bromine, chlorine, ozone, and salt systems to protect equipment and optimize sanitation.
Product Details
Sodium Bicarbonate (100%)
Add 1 to 2 tablespoons per 500 gallons with jets running to increase total alkalinity by approximately 10 to 20 ppm.
Compatibility
- Compatible with chlorine, bromine, ozone, and saltwater hot tub systems.
- Do not pre-mix with acidic chemicals or dry sanitizers; broadcast directly into spa water.
When To Use This
Pro Tip
In regions with soft or naturally low-alkalinity source water, always balance total alkalinity into the 80–120 ppm window before attempting fine adjustments to pH, as alkalinity acts as the anchor that prevents wild pH swings.
Common Questions & Instructions
How does Sirona Spa Up raise total alkalinity and pH in hot tubs?
Formulated with 100% Sodium Bicarbonate, it increases total alkalinity toward the ideal 80–120 ppm range, creating a buffer that stabilizes pH between 7.2–7.6 and prevents acidic corrosion.
Can I use Sirona Spa Up with bromine sanitizing systems?
Yes, Sirona Spa Up is fully compatible with bromine, chlorine, mineral, and ozone systems without interfering with sanitizer performance or water clarity.
How much Sirona Spa Up should I add to my spa?
For typical 400 to 500 gallon hot tubs, add approximately 1 to 2 tablespoons with jets running, then retest after 15 to 30 minutes until alkalinity reaches 80–120 ppm.



