5 Things to Know About Lowering Cyanuric Acid in Your Pool

Draining is the only way to lower cyanuric acid No chemical trick removes CYA once it’s in the water. You must partially drain and refill the pool.

Ideal CYA range is 30–50 ppm for chlorine pools Below 30 ppm, chlorine burns off in hours. Above 80–100 ppm, chlorine becomes locked up and can’t sanitize.

Adding CYA is easy; lowering it is not You can raise CYA with granular stabilizer or liquid conditioner. To lower it, you need to replace water.

Use a pool calculator to determine how much to drain A 25% to 50% partial drain usually works, depending on how high your CYA level is.

High CYA is the top cause of persistent green pool water If you add chlorine but the water stays green, check CYA first. Ignoring it wastes chemicals and time.