What can I do to decrease them? 

If your Free Available Chlorine (FAC) readings are consistently high, follow these steps:

1. Adjust the lid on the Skimmer dispenser to a smaller opening so the table erosion decreases.
    
2. If the tablet erosion is one tablet per week or less, and you still have high FAC readings, add one half the normal dose of Energizer Tablets; that is, 1 cup of Energizer Tablets per week for every 5,000 gallons of water.

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