What is a requirement of a manual water pump on a boat?

A manual water pump on a boat must be designed for reliability and ease of use, allowing the operator to quickly remove water from the vessel in emergency situations. It should be constructed from corrosion-resistant materials to withstand harsh marine environments. Additionally, the pump should be easily accessible and capable of moving a sufficient volume of water to ensure the safety and stability of the boat. Proper maintenance and regular checks are also essential to ensure its functionality when needed.