1. When repairing the water leakage of the sink faucet, you must first tighten your own water inlet valve to prevent a large amount of water leakage during the maintenance process.
2. Unscrew the handle screw of the sink faucet and turn on the faucet. Then check the parts inside the faucet, including checking the screws and the valve core, to see if there is any damage, and replace them if necessary.
3. Under normal circumstances, the water leakage of the sink faucet is caused by the damage of the gasket. At this time, you only need to buy a gasket of the same type to replace it and it will be usable.
4. After repairing, it is necessary to install all parts of the sink faucet back and fix them again with screws. Finally, turn on the tap and check for leaks.