Shuikou in geomantic omen refers to the entrance and exit of water flow.
Shuikou is actually to adjust the relationship between building orientation and running water, so that water is in the best position. The word "water" in modern geomantic omen refers to all flowing gas fields, such as roads and water pipes.
The sign of a suitable nozzle is: the door opens and the main door closes. That is, the place where the water comes is called Tianmen, so it should be wide.
Traditional geomantic omen holds that water is a financial resource. If architecture and geomantic omen are combined, it will naturally generate wealth and bring financial resources to the owner. But if buildings and sprinklers are fierce in geomantic theory, then this water source will bring disaster to the owner.
Feng Shui pays the most attention to Shuikou, which is the method to determine the good or bad luck of Shuikou.