Are you familiar with using trenchless technology for drain repairs? If so, can you explain the process?

Sample interview questions: Are you familiar with using trenchless technology for drain repairs? If so, can you explain the process?

Sample answer:

Trenchless Technology for Drain Repairs

Trenchless technology offers a minimally invasive approach to drain repairs, avoiding the need for extensive excavation. This technique involves inserting a new liner or pipe into the existing damaged line.

Process:

1. Inspection: The drain is inspected using a camera to assess the damage and determine the feasibility of trenchless repair.
2. Cleaning: The drain is cleaned using jets of water or mechanical devices to remove debris and prepare it for repair.
3. Curing (Liner Method): A flexible liner impregnated with resin is inserted into the damaged pipe and expanded using air or water pressure. The resin cures, forming a new, durable pipe within the old line.
4. Pipe Bursting (Pipe Method): A bursting head attached to a new pipe is pulled through the damaged line, breaking it up and simulta… Read full answer

   Source: https://hireabo.com/job/12_0_10/Drain%20Technician