There is running water in the bathroom, and it is found that the water pipe is good, but is the leakage of the faucet joint the hydraulic reason or the installation reason of the bathroom?

This is the responsibility of the worker who installed the faucet.

Workers in hydropower transformation are responsible for reserving the outlet position of water pipes and adding a plug at the outlet. The worker who installs the faucet, after unplugging the plug, connects it to the outlet pipe through the eight-character valve, and then connects it to the faucet through the eight-character valve and hose. This is the operation content of the faucet installer.