PH levels in drinking water are monitored extremely closely and are required to be kept in a range of 6.5–8.5 by the Environmental Protection Agency (EPA). Though, if not regulated carefully, the effects of drinking acidic or alkaline water could be harmful.
When water is below a pH level of 7, it has a corrosive quality to it. This means it could contain iron, copper, lead, or zinc from plumping and various other metal fixtures. It will have a bitter and metallic taste to it. High alkaline water doesn’t pose health risks but does cause aesthetic problems. Formation of scale or precipitate on piping, fixtures, dishes, and utensils will occur. The taste will have a baking soda-like taste and will have a slippery feel.