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Sirona® Spa Up

$12.99
In Stock Locally
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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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Why Pool Pros Trust This

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

Active Ingredient

Sodium Bicarbonate (100%)

Recommended Dosing

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

Correcting low total alkalinity below 80 ppmStabilizing fluctuating or acidic pH levelsRoutine water balancing after refilling a spa or hot tub

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.

Free checklist

The DFW month-by-month pool checklist

What it covers (12 months · 76 tasks · 12 marked critical):

  • Freeze nights (January and December): keep the pump running, and what to drain if the power goes out
  • The March opening: test everything, brush, shock, then balance alkalinity, pH and calcium
  • Summer: testing two or three times a week, the weekly shock, and what to do after rain or a party
  • Fall leaves, and easing the chemistry down for winter
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