How to build a mop pool on the green belt to make noise?

Hello! In the formal urban sewage discharge, wastewater enters the river, such as rainwater on the roof and sewage from the balcony, which means that wastewater can be directly discharged into the river.

But now in cities, balconies are often turned into laundry rooms, and the water from washing machines is discharged into waste pipes and then into rivers. As a result, our river is no longer clear.

In fact, the government is in charge of this problem, but our government has not managed it well, which has caused environmental damage.

Now the house design conforms to the regulations, but the decoration does not. This is the national condition of our country.

Hope to adopt!