I have a problem with the water faucet in the bathroom, as water drips constantly even after closing it tightly. I think the problem

Description:

I have a problem with the water faucet in the bathroom, as water drips constantly even after closing it tightly. I think the problem is simple and may need the washer replaced or a simple repair. I ask the plumber to bring the necessary tools and appropriate spare parts. The house is on the second floor and the faucet can be easily reached.