There is no concern that most Municipality Systems. However, the problem is that the water needs to travel to you through many kilometres of aging pipes.

To start with, 72% of your body consists of water that is besides your Brain 75% kidneys 82.7%, blood 83.7% and your muscles 75.6%

When you don't have enough water in your body, your cells start to draw water from the bloodstream. Dehydration start before you feel thirsty.