Support answer · Alkalinity
How often should I test pool alkalinity, and should I adjust alkalinity or pH first?
What to know.
Test alkalinity at least once per week during swim season or anytime water chemistry changes significantly.
Always adjust total alkalinity before making major pH adjustments. Stable alkalinity helps keep pH easier to manage.
Source: Maytronics support. Rewritten for clarity with the same steps; the videos and illustrations are Maytronics' own.
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