* * * Main water consumption * *. For families with 4 people or less per household, the monthly water consumption of 20 cubic meters or less is the first-class water consumption.

* * * Secondary water use * *. For families with 4 people or less per household, the monthly water consumption of more than 20 cubic meters to 30 cubic meters or less is the secondary water consumption.

* * * tertiary water use * *. For families with 4 people or less per household, the monthly water consumption of more than 30 cubic meters is the third type of water consumption.

The above contents are for reference only, and the specific policies may be different due to regional and policy changes. For accurate information, please consult relevant departments.