You can help push Day Zero back even further with small changes in your habits. Use this is a guide to help you get to 50 litres of water per person, per day.
How to use 50 litres or less water per person per day.
Shower = 10 litres
Flushes = 9 litres
Brush teeth and wash hands = 2 litres
Cooking = 1 litre
Drinking = 3 litres
House cleaning = 5 litres
Laundry = 10 litres
Dish washing = 9 litres
Pets = 1 litre