Support answer · Alkalinity

What is pool alkalinity, what is the ideal range, and why is it important?

From Maytronics support, updated 2026-08-11, rewritten for clarity.

The answer

What to know.

Pool alkalinity measures your water’s ability to resist sudden pH changes. It acts as a buffer that helps keep pool water balanced and stable.

Most residential pools should maintain total alkalinity between 80–120 ppm (parts per million).

Balanced alkalinity helps:

  • Keep pH stable
  • Prevent corrosion and scaling
  • Improve water clarity
  • Protect pool equipment and surfaces
  • Increase swimmer comfort

Source: Maytronics support. Rewritten for clarity with the same steps; the videos and illustrations are Maytronics' own.

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