There is something wrong with the tap water meter at home. How to change it?

It's better to ask for help than to ask for help!

First of all, you should prepare a live wrench. There are two copper connectors at both ends of the water meter. Turn them off with a wrench and take them off. . Then exchange it for a new one. Please note that there is a rubber washer where the coupling is located. Be careful not to drop it, or it will leak. In addition, remember to close the valve when disassembling the union, or your home will be flooded. Ha ha.