Support answer · Alkalinity
What is pool alkalinity, what is the ideal range, and why is it important?
Short answer: Pool alkalinity helps prevent sudden pH changes, with a recommended total alkalinity range of 80–120 ppm for most residential pools.
Based on Maytronics support, updated 2026-08-11, rewritten by Poolbots' pool experts.
The answer
What to know.
Pool alkalinity measures how well your water can resist sudden changes in pH. It provides a buffer that helps keep the water balanced and stable.
For most residential pools, aim for a total alkalinity of 80–120 ppm (parts per million).
Keeping alkalinity in balance helps:
- Reduce pH swings
- Prevent corrosion and scale buildup
- Keep water clearer
- Protect equipment and pool surfaces
- Make the water more comfortable for swimmers
Source: Maytronics support. Same steps and facts, rewritten for clarity; the videos and illustrations are Maytronics' own.
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