The noise of the faucet is caused by some air sucked in by the water pipe. It may be when the main valve is changed at home, or when the faucet is broken and the main valve at home is not closed tightly, the main valve in the corridor should be closed. At this time, if you turn on the faucet when you turn off the main valve, turn off the faucet when you don't turn on the main valve. In this way, because some air can't be discharged, the faucet will vibrate and make noise.

In this case, the effect of more water discharge is not obvious. It is suggested to take advantage of the time when residents in the corridor are concentrated at home, such as at night, and inform all residents to turn on the tap before turning off the main valve in the corridor. When the residents on the first floor drain the water, they can reopen the main valve of the corridor. However, all families have to wait until there is water on the top floor before turning off the tap. In this way, the noise can be completely eliminated. It depends on the cooperation between neighbors.