WATER DEMAND
HOW MUCH WATER DO WE NEED?
Every inhabitant of Graz needs an average of about 140 litres of drinking water daily. This quantity of water is used to satisfy all kinds of needs:
Daily water demand per head (in litres). Total water demand about 140 litres
Washing, in particular, requires large quantities of water. So using as little detergent and shampoo as possible can save a lot of water!
150 l HAVING A BATH
150 l WASHING A CAR (using a hose)
100 l WASHING MACHINE (one wash/4 kg – load)
40 l HAVING A SHOWER
40 l WASHING A CAR (using a bucket)
30 l DISH-WASHER (1 wash)
10 l FLUSHING THE TOILET