pH- Potential of Hydrogen


         Chlorine Effectiveness Scale as Depending on pH (Potential Hydrogen)  




  • The pH is a measure of hydrogen ion (H+) concentration in water.


  • A person’s body has a pH between 7.2 and 7.8.


  • Total Alkalinity or TA acts as a buffer to stabilize the pH.


  • The pH is lowered by adding muriatic acid (MA).


  • Sodium carbonate also called soda ash or washing soda raises pH.


  • If pH is below 7.2 or above 7.8 there will be a reduction in swimming comfort.    


  • If the pH is too low then anything metal will corrode staining your pool plaster.  


  • If the pH is too high there will be scale formation, discoloration of pool walls and chlorine becomes inactive causing sanitation problems.

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