Question 70

A well pump for the potable water supply in a basement must be mounted a minimum of 12 inches above the basement floor.

Mounting a well pump at least 12 inches above the basement floor ensures that it remains above potential flooding and contamination levels, thus protecting the potable water supply.

A) 6

While mounting a well pump 6 inches above the basement floor provides some elevation, it may not adequately protect against flooding or contamination risks associated with water accumulation in basements. This height does not meet the minimum safety standards for potable water systems.

B) 12

This option is correct as it adheres to the standard requirement for well pump installation. A minimum height of 12 inches above the basement floor is crucial for preventing any potential contamination from floodwaters or debris.

C) 18

Mounting a well pump 18 inches above the basement floor exceeds the minimum requirement but is not necessary. While it adds a layer of safety, it does not address the core requirement set by regulations, which specifies 12 inches as the minimum height.

D) 24

Like option C, a 24-inch elevation is more than what is required. Although it offers enhanced protection, it is not aligned with the established minimum standards for well pump installation in basements.

Conclusion

The requirement of 12 inches for mounting a well pump is established to ensure safety against flooding and contamination risks. Options A, C, and D either do not meet the minimum standard or exceed it unnecessarily, making B the definitive correct answer.