Why did the rich in ancient times put many water tanks in front of their doors? What are they used for?
In ancient times, putting a water tank in front of the door had three functions, the main purpose of which was fire prevention. Because in ancient times, a large number of buildings were based on wood, and once a fire broke out, water could not be taken from the well, so the water tank was a more direct and effective way.
Another point is that it is used to raise fish. 100% water tank will raise a large number of goldfish, which is actually an auxiliary function. Because the water tank is idle there, if you don't use it to raise fish, mosquitoes will be produced after a long time, and fish farming can avoid this kind of thing. Another point is that it is a kind of geomantic omen, and that is the way to make money.
We know that in Feng Shui, water is wealth, and the more water there is, the more wealth there is, so the water tank for fire prevention is not placed behind the house, but in front of it.
Water tanks were not only placed in the courtyards of ancient rich people, but also in the Forbidden City where the royal family lived. Now they can be seen in the palace, and the water tanks in the palace are more elegant, all made of copper.
From the establishment of the Ming Dynasty to the demise of the Qing Dynasty, there were hundreds of fires in the Forbidden City, so the prevention of such hidden dangers has been done to the extreme. In the final analysis, it is because ancient people like to use open flame lighting to keep warm, which led to the fire factor.