____________ pumps may be used as a secondary supply source if the primary supply lasts long enough to allow the pump to be started.

____________ pumps may be used as a secondary supply source if the primary supply lasts long enough to allow the pump to be started.

• A. Electric
• B. Diesel
• C. Manually Started
• D. Solar-Powered

Answer: (C)

Backups for pumping need to be usable without waiting on the main energy source. A manually started pump can be engaged without any external power or prime mover, so it can be brought online quickly even if the primary supply is still winding down. If the primary supply lasts long enough to start and run, you can switch to the manual pump to keep flow going while the main system is addressed. Electric, diesel, and solar-powered pumps all rely on a power source to start or run, which may not be readily available in a delay or outage, making them slower or less reliable as an immediate secondary option. So using a manually started pump provides the quickest, independent way to maintain pumping when the primary supply is being managed.

Backups for pumping need to be usable without waiting on the main energy source. A manually started pump can be engaged without any external power or prime mover, so it can be brought online quickly even if the primary supply is still winding down. If the primary supply lasts long enough to start and run, you can switch to the manual pump to keep flow going while the main system is addressed. Electric, diesel, and solar-powered pumps all rely on a power source to start or run, which may not be readily available in a delay or outage, making them slower or less reliable as an immediate secondary option. So using a manually started pump provides the quickest, independent way to maintain pumping when the primary supply is being managed.