Rhode Island Journeyman Plumber Practice Exam

A backwater valve can be buried?

1. Never

2. Only if accessible

3. In the vicinity of quick-closing valves

4. In all cases

The correct answer is: In the vicinity of quick-closing valves

A backwater valve is designed to prevent sewage from flowing back into a building and must be carefully installed to ensure it functions effectively. The correct understanding involves the importance of accessibility and proper placement in relation to other plumbing components. Burial of a backwater valve should ideally be done in a manner that allows for maintenance, inspection, and testing – primarily to ensure that it can be operated when needed. While it is acceptable to bury a backwater valve in certain instances, it must remain accessible for servicing. The notion regarding quick-closing valves further emphasizes the situational appropriateness of a backwater valve's installation, as close proximity to these valves may necessitate specific considerations in terms of flow and pressure management. Thus, the idea that a backwater valve should only be buried in contexts where it remains accessible aligns with the practical aspects of plumbing regulations and maintenance needs, ensuring that the valve can be used effectively to prevent backflow. In summary, accessibility and placement related to other devices significantly influence the decision on whether a backwater valve can be buried, considering its vital role in safeguarding the plumbing system from backflow issues.