Why is the water column of the faucet getting thinner and thinner and finally scattered?

Water pressure, atmospheric pressure, internal structure of water pipe

Generally speaking, the lower the floor, the greater the water pressure. When you tighten the faucet, the water hole in the internal structure of the faucet will gradually close. Because the pressure in the water pipe is greater than the external pressure at this time, the water will be pumped out by laser. Because there is still water dripping from the faucet after the water is sprayed out, the water will become thinner. Similarly, when the water is too thin and the pipe wall of the faucet is too thick, the attached pipe wall will naturally disperse when the water flows down.