Sample interview questions: Are you familiar with backflow prevention devices and their importance in drain systems?
Sample answer:
Yes, I am well-versed in backflow prevention devices and their crucial role in drain systems.
Backflow prevention devices are essential in preventing contaminated water from flowing back into the potable water supply. These devices play a vital role in protecting public health by safeguarding against the ingress of hazardous substances into clean water sources.
In drain systems, backflow prevention devices are frequently employed to:
- Prevent sewage from flowing back into the building’s plumbing fixtures and appliances.
- Protect against cross-contamination between separate drain systems, such as sanitary waste and storm drains.
- Safeguard against the entry of contaminated water from external sources, such as street drains, into the building’s drain system.
Various types of backflow prevention devices are available, each designed for specific purposes and appl… Read full answer
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