In Feng Shui, a dragon has nine sons. Which one is responsible for managing floods and the like?

In fact, there is no necessary connection between the Nine Sons of the Dragon and Feng Shui. None of them fall within the scope of Feng Shui. Feng Shui focuses on the four elephants of Suzaku, Xuanwu, Green Dragon, and White Tiger, which correspond to the Twenty-Four Mountains (it’s too complicated to write down, you can check what the Twenty-Four Mountains are by yourself.) And floods occur in the Kan position (i.e., in the Eight Diagrams) The Kan position is also the Kan position in Hexagram Sixty-four. The Kan position is due north. You cannot easily open the door in this direction. Check to see if the front door of your home faces the north or the northeast (Gen position, this position is the ghost position). Corner, not suitable for opening doors, suitable for building toilets), southwest (Kun position, second ghost foot, corresponding to the door of death in "Qi Men Dun Jia"). In fact, what I am talking about here is some knowledge about regulating qi and feng shui. Feng shui was originally a life law summarized by our ancestors living in the northern hemisphere. Later, it became metaphysical. Don’t put too much faith in suppressing evil spirits (if you want to know, put something somewhere. It is to suppress evil spirits, but it is actually a psychological comfort). You can study the scientific principles of Feng Shui and the problems in your home. For example, why can't the door face north? Because the cold wind is strong in the north. People living in such a house have a cold side in their system and heart, which is more dangerous. In fact, if you are superstitious, there is another saying that such disasters are not bloody disasters, and with them there will be no bloody disasters, because you have already survived the disaster