What is "Shuikou" and what role does "Shuikou" play in Feng Shui?

In any position, due to the action of natural rain and running water, all kinds of depressions, also known as basins, will be formed, and their natural running water will eventually flow out in one place, and this running water outlet is the water outlet. The best sprinkler is to stand in the direction of flowing water, not find a basin where the water flows out, or even make a wrong judgment; Known as the nozzle is careful and the barrier is locked. The conclusion is: the nozzle is careful, the customs is locked, there are many talents inside, and there are many rich families; On the other hand, if the nozzle is closed, it will be mediocre and poor, and it is basically impossible for people to make great achievements.