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Frequently Asked Questions

Pool Care::Maintenance

What is Chlorine Demand?

Chlorine demand is the consistent inability to maintain a chlorine residual in a pool. It is caused by a buildup of contaminants which creates an "overload" on the sanitizing system. Quite simply, it means that more sanitizer is required than is being provided to the water.

There are two ways to treat chlorine demand. The first is to add the appropriate amount of chlorine. The quickest way to find out what that amount is, would be to have a BioGuard dealer run a chlorine demand test on the Accu-Demand30™. The second way to treat chlorine demand is to drain some of the water and replace with fresh water. While this will not completely take care of the demand, it can help lower the amount of product needed.

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