Should You Add Chlorine or Adjust pH First? The Right Order for Clear, Balanced Pool Water
The benefits are clear when your pool chemistry is handled in the right order: chlorine works more effectively, the water stays more comfortable, and you spend less time chasing readings that seem to change every time you test. So, should you add chlorine or adjust pH first? For routine pool maintenance, the best approach is usually to test everything first, bring an out-of-range pH into an appropriate range, and then make your final chlorine adjustment. There are exceptions, especially when chlorine is dangerously low or you are dealing with algae or contamination, but understanding how pH and chlorine interact makes the decision much easier.
Quick Answer
Usually, adjust pH first if it is significantly outside the proper range, then adjust chlorine. Chlorine's sanitizing performance is affected by pH