Have you ever had to work on drain systems in extreme weather conditions? If so, how did you adapt?

Can you describe a time when you successfully prevented or resolved a drain blockage from recurring?

How do you handle hazardous materials or substances encountered during drain repairs?

Can you explain how you maintain accurate records and documentation of drain repair work?

Are you familiar with backflow prevention devices and their importance in drain systems?

How do you keep up with industry trends, new technologies, and best practices in drain repair?

Have you ever worked on a drain system that required excavation or trenching? If so, can you explain the process?

Can you describe your experience with drain pipe installation or replacement?

How do you handle unexpected challenges or obstacles during drain repairs?

Are you familiar with using cameras for drain inspections? If so, can you explain the process?