Your body already has a very sophisticated system (involving your lungs and kidneys) to keep your blood pH strictly between 7.35 and 7.45. Drinking water with a different pH won't change your blood's acidity; as soon as alkaline water hits your highly acidic stomach, its pH is neutralized anyway.
Machines (like those from Enagic/Kangen or Tyent ) hook up to your tap. They are expensive—often ranging from $1,500 to $5,000. They allow you to customize the pH level and provide acidic water on the side, which is actually great for skin care and cleaning surfaces. The Bottom Line buy ionized water
Proponents argue that modern diets are too acidic and that drinking alkaline water neutralizes this acid. Here is how those claims hold up: Your body already has a very sophisticated system