The pH scale measures the alkalinity-acidity levels of water, where “soft water” is more alkaline and “hard water” is more acidic. This reading is based on the pH scale - pH 0 is the most acidic, pH 7 is neutral, pH 14 is the most alkaline. Alkaline water has higher pH levels, meaning that it helps to neutralize excess acid that may be produced in the stomach due to factors such as stress and diet. The average pH range of tap or bottled water is 6.7 to 7.4 pH, whereas Premium Water has a pH of 8.3.