Whom would you trust?

[waterbear]

Hi Ben,

What are you considering as High CYA? Any concerns over the toxicity of CYA?

Cyanuric acid is essentially non toxic with and LD50 of 7700 mg/kg in rats. For comparison purposes baking soda (sodium bicarbonate) has an LD50 of 4220 mg/kg, table salt (sodium chloride) has an LD50 of 3000 mg/kg, Aspirin 200 mg/kg, and caffeine 192mg/kg.
This means that baking soda, table salt, Asprirn, and caffeine are progressively more toxic than CYA!