Which is NOT a good reason to select an electric diaphragm type pump?

Choosing to utilize an electric diaphragm type pump involves considering various operational characteristics. The characteristic that stands out as not aligning with the typical attributes of electric diaphragm pumps is their submersibility. Electric diaphragm pumps are not inherently designed to be submersible; they are often employed above the liquid surface and are not suitable for underwater applications unless specifically indicated by the manufacturer.

This is contrasted with the other characteristics associated with diaphragm pumps. Their ability to pass solids fairly well makes them advantageous for applications involving wastewater or other fluids containing particulates. The self-priming capability is another significant benefit, allowing the pump to operate efficiently without the need for priming in many scenarios. Furthermore, they're known for their resilience when it comes to running dry; they typically won't sustain damage in such cases, making them reliable in various operational conditions.

Understanding the characteristics of pumps, especially for specific applications, is crucial in making well-informed choices in marine and other fluid-based systems.