Swimming Pool Breakpoint Chlorination

Swimming Pool Breakpoint Chlorination is the process of adding enough chlorine to a pool to destroy chloramines and other organic contaminants, ensuring clean and safe water.

Why is Breakpoint Chlorination Important?

  • Eliminates Chloramines: Removes combined chlorine that causes strong odors and irritation.
  • Restores Sanitization: Ensures free chlorine is effective at killing harmful bacteria and viruses.
  • Improves Water Clarity: Oxidizes organic matter, leaving the pool water clear and inviting.

How to Perform Breakpoint Chlorination

  1. Test the water to determine the total chlorine and free chlorine levels.
  2. Calculate the combined chlorine level by subtracting free chlorine from total chlorine.
  3. Multiply the combined chlorine level by 10 to find the amount of chlorine needed for breakpoint chlorination.
  4. Add the calculated amount of chlorine evenly around the pool while the pump is running.
  5. Allow the pool to circulate for at least 24 hours and retest chlorine levels to ensure the process was successful.

Tips for Successful Breakpoint Chlorination

  • Perform the process at night to minimize chlorine loss due to sunlight.
  • Ensure pH levels are between 7.2 and 7.6 for maximum chlorine effectiveness.
  • Use a pool calculator to accurately determine chlorine dosage.

When to Use Breakpoint Chlorination

  • When combined chlorine levels exceed 0.2 ppm.
  • After heavy pool use or a pool party.
  • Following heavy rainfall or contamination events.

Related Terms

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