What is the acceptable pH range for drinking water?

The acceptable pH range for drinking water is between 6.5 to 8.5. This range is considered optimal for a number of reasons, including the safety of the water for human consumption, its palatability, and its ability to prevent corrosion in plumbing systems. A pH lower than 6.5 can lead to increased acidity, which may cause leaching of harmful metals from plumbing materials into the water supply. Conversely, a pH above 8.5 can result in water that tastes unpleasant and may form scale deposits, which can ultimately affect the functionality of plumbing fixtures and appliances. This pH range is also aligned with guidelines set by organizations such as the Environmental Protection Agency (EPA), ensuring that drinking water is not only safe but also pleasant for consumers.