- Category:
- Pool •
- Pool Maintenance •
- Pool Problems •
The problem
If you've added sanitizer or shock and still can't get a reading, or your favorite swimsuit shows signs of bleaching, the problem may be too much Free Available Chlorine (FAC).
Recommended Solutions
- For high Total Chlorine (TC): Shock treat the pool using an HTH™ shock product. For additional help, contact one of our HTH® pool care experts.
- For high Free Available Chlorine (FAC): Stop adding chlorine. Allow the FAC levels to decrease to 1-4 ppm. For additional help contact one of our HTH™ pool care experts.
Preventative maintenance
- Verify pool volume and use the correct product dosage.
- Test FAC and maintain 1-4 ppm.
- Shock treat the pool weekly and after heavy rains or heavy bather loads.