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How Do I Break The Chlorine Lock In My Pool? [Solved]

If your chlorine lock is caused by too high levels of cyanuric acid, the only way to deal with it is to partially drain your pool. Cyanuric acid doesn’t dissipate so draining it out is the only cost-effective way to do it.5 Nov 2020

How to Cure CHLORINE LOCK and CHLORINE DEMAND | Swim University

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What Is Chlorine Lock?

From http://www.swimmingpoolsteve.com/pages/chemistry.html - Learn about

Why Your Pool Isn’t Holding Chlorine

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