Pool Cyanuric Acid Calculator
Calculate how much stabilizer (cyanuric acid) your pool needs to reach target CYA.
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Recommended Levels
See the full reference chart:
Quick tips
Ideal CYA: 30–50 ppm for outdoor pools. Too high reduces chlorine effectiveness; too low lets chlorine burn off quickly. Add stabilizer slowly and re-test after a few days.
- Typical range: 1–3 ppm chlorine
- Recommended pH: 7.2–7.6
- Test water regularly
WaterBalanceTools provides practical calculators and guides for pool and hot tub water chemistry. These tools are designed to help maintain safe chlorine, pH, and total alkalinity within a healthy water balance.
Last updated: April 2026