Water is very important in a delly life that is true u have dont eat 5 days are alive but dont drink water just 1 day u have to be die then any shood drink a dirty water then must to be die and 50% dieses come outs a water likr virus and bictria types.
And I think any avrge person minimum 5liters water consume per day then I have sagest any person drink a water check this out and drink puriet autofill water and I think every one take have.