The consistent inability to maintain chlorine levels is also called “chlorine demand” and is most often caused by a high level of inorganic and organic contaminants in the water. Those contaminants force the chlorine to work extremely hard to oxidize them, leaving little chlorine to protect swimmers. Proper chlorine levels cannot be reestablished without first eliminating the contaminants. External factors such as sunlight and heat also contribute to chlorine loss.
To Fix Excessive Chlorine Loss:
Take a water sample to your BioGuard Dealer to determine the extent of the demand