Car

The figures provided for domestic water are a combination of two data points: the average consumption linked to a particular use, often an average of several sources on the Internet (water consumption for a shower, a bath, a washing machine, etc.), and a comparison with the average proportion of domestic water used for that use in France (for example, 12% for washing clothes). For car washing, this gives an average consumption of 150 litres of water, 6 times a year. However, the value varies according to the type of wash (less for jet washing, more for roller washing).