Sample interview questions: Are you familiar with using non-invasive techniques, such as pipe bursting or pipe reaming, for drain repairs? If so, can you explain the process?
Sample answer:
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Pipe Bursting:
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Process:
- A bursting head is attached to the damaged pipe.
- A hydraulic or pneumatic expander is used to expand the bursting head, which breaks the old pipe.
- A new pipe is simultaneously pulled into place as the old pipe is broken.
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Advantages:
- Minimally invasive – no digging required.
- Can be used on a variety of pipe materials.
- Can be used to replace pipes in tight or inaccessible locations.
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Disadvantages:
- Can be more expensive than traditional methods.
- Requires specialized equipment and expertise.
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Pipe Reaming:
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Process:
- A cutting head is attached to a reaming machine.
- The reaming machine is inserted into the pipe and the cutting head is rotated to remove the buildup of debris and corrosion from… Read full answer
Source: https://hireabo.com/job/12_0_10/Drain%20Technician