Which of the following is not considered a common problem with sump pumps?

Running continuously is not typically considered a common problem with sump pumps; instead, it is often seen as a normal operating condition in certain circumstances. Sump pumps are designed to remove water that accumulates in basements or crawl spaces, and during periods of heavy rainfall or high groundwater levels, it’s expected for the pump to operate continuously to keep up with the influx of water.

In contrast, issues such as inoperative pumps, short cycling (where the pump turns on and off frequently), and an improper discharge point (like being above grade level) are recognized problems that can affect the efficacy of sump pumps. An inoperative pump fails to perform its primary function, short cycling can lead to wear and tear on the pump and decrease its lifespan, and improper discharge can cause water to flow back into the area that the sump pump is meant to protect. Thus, running continuously indicates a need for attention only if it occurs inappropriately during dry conditions, making it less significant as a 'problem' compared to the other issues listed.