Pool Chemical Descriptions

Cyanuric Acid

Chlorine, by itself, is susceptible to being destroyed by the ultraviolet rays of the sun. Cyanuric Acid, which is typically packaged and sold as either "Conditioner" or "Stabilizer" will protect chlorine from being destroyed by the sun. Although both granular chlorine and chlorine tablets contain Cyanuric Acid as an ingredient, the amount contained is merely a trace. Therefore, the periodic addition of Cyanuric Acid ("Conditioner" or "Stabilizer") will be necessary. Cyanuric Acid is granular.

Although cyanuric acid (isocyanuric acid)stabilizes the chlorine level, it does it at the cost of reducing the effectiveness (ORP-Oxidation Reduction Potential) of the chlorine. Cyanuric acid (CYA) is found in dichlor / trichlor tablets. If you choose to avoid cyanuric acid, look for Calcium hypochlorite (solid) or Sodium hypochlorite (liquid). You should test your pH, these two chemicals contain strong bases and will raise pH if used in sufficient quantity. If you do use Cyanuric acid, be sure to test the levels. If the levels are too, high the chlorine will completely lose it's sanitizing ability. Certain new studies are showing that CYA really needs to be maintained at a level no higher than 40 ppm allowing chlorine to perform optimally (high levels of CYA contribute to TDS or Total Dissolved Solids which "interfere" with chlorine activity).


The most widely-used chemical that pool owners use to kill bacteria, living organisms, ammonia, and any other contaminates (such as dirt, debris, and algae spores) that are in pool water. The two most common forms of chlorine used by pool owners are granular chlorine (whose scientific name is "Dichlor") and chlorine tablets (whose scientific name is "Trichlor"). Chlorine tablets come in two sizes: 1" tablets and 3" tablets.

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