In the traditional folk culture of China, the placement of water tanks has certain rules and implications. Generally speaking, the water tank should be placed in the middle or front of the house to keep it clean and tidy. In some places, water tanks are placed at the back of the house, which is thought to bring good luck and wealth.
In geomantic omen, there is also a certain emphasis on the placement of water tanks. Water tanks can be placed in the four corners of the house to absorb energy from all directions and increase the feng shui effect of the house.
In addition, there are some sayings and symbolic meanings of putting the water tank mouth down. For example, in some places, putting a water tank with its mouth facing down means making money, which can increase the wealth of the family.
In a word, the symbolic meaning and cultural connotation of placing water tanks with the tank mouth facing down vary from region to region, which needs to be understood and explained according to local traditional culture and customs.