PooloraPool stabilizer (CYA) calculator
Estimate dry cyanuric acid needed to raise pool stabilizer. Enter current CYA, target, water volume and dry product purity.
Measure cyanuric acid before adding stabilizer. Use a target suitable for your sanitizer and equipment; adding more is not always better.
How the calculation works
Dry CYA mass in grams = increase in ppm × liters ÷ 1,000 ÷ purity fraction. This is a mass balance for dry cyanuric acid, not a formula for liquid sodium cyanurate.
Worked example
For 10,000 gallons, raising CYA by 10 ppm with 100% dry cyanuric acid takes about 13.5 oz (380 g). In metric, 50,000 L needs 500 g.
Before using the result
Dry cyanuric acid only. Follow the product instructions for application, dissolving and retesting. Do not add repeated doses before the first treatment has dissolved and can be measured.
Related guides
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