Why is pH important in drinking water?
The pH of drinking water theoretically should be at 7.
We know that anything with a pH of under 7 is acidic and above 7 is basic; therefore, 7 would be the neutral level.
However, this is not the case because on average drinking water has a pH of around 6 to 8.5. This is due to different dissolved minerals and gases in the water itself.
Consequently, water with a more acidic pH would taste metallic and with a more basic pH would taste alkali.
To understand why water has a neutral pH one can observe the structure: