TL;DR
Cyanuric acid is the pool chemical, called stabilizer or conditioner, that shields chlorine from destruction by sunlight, extending its life in outdoor water from under an hour of intense UV exposure to most of a day. The working range is 30 to 50 ppm; above roughly 100 ppm it binds chlorine so tightly that sanitizing power collapses, a condition techs call chlorine lock.
What it means
Cyanuric acid is the pool chemical, called stabilizer or conditioner, that shields chlorine from destruction by sunlight, extending its life in outdoor water from under an hour of intense UV exposure to most of a day. The working range is 30 to 50 ppm; above roughly 100 ppm it binds chlorine so tightly that sanitizing power collapses, a condition techs call chlorine lock. Because stabilized chlorine tablets add it continuously and it does not evaporate, levels only ratchet upward, and partial drain-and-refill is the standard correction.
Where it sits in the glossary
Cyanuric acid is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
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ProFix tools that touch this term
See also
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