What Does Cyanuric Acid Do?

Cyanuric Acid (CYA) is a pool balancing product used to help chlorine last longer. Chlorine, in its natural form, is unstabilized—which means it degrades when exposed to sunlight. Adding Cyanuric Acid reduces the sun's impact on chlorine loss.

Is cyanuric acid necessary in a pool?

One of the most common chemicals used for the prevention of chlorine loss in swimming pools is Cyanuric Acid (also called CYA, Conditioner, or Stabilizer) it protects the free chlorine from being destroyed by the sun ultraviolet rays. ... Indoor pools do not need cyanuric acid, unless it gets periodic exposure to sunlight.

What raises cyanuric acid in a pool?

Cyanuric acid levels are raised by adding pool stabilizer. It's called stabilizer because cyanuric acid stabilizes free chlorine from being evaporated by the sun.