I am a home service technician, and I recently completed a job for a client. The client had a leak in their system, and I was called to diagnose the issue. After inspecting the system, I determined that the flex line needed to be replaced. I also pulled a vacuum on the system to remove any debris or contaminants, and then I charged the unit with refrigerant. The client was happy with the work, and I was able to schedule the job for Thursday afternoon.