The Hamilton Index™

BALANCING IS EASY AS 1-2-3

Rather than forcing users to use a complicated equation, the Hamilton Index™ is expressed as a simple chart.

  1. Test your hardness (Total Hardness is recommended, but Calcium Hardness estimates are included for convenience).
  2. Adjust Total Alkalinity below the max value. Plaster pools should be maintained 10 ppm lower vs other surfaces.
  3. Maintain pH between 7.8 to 8.2, avoiding going below 7.6.