Whale MK5 Universal 3-Position Manual Bilge Pump

The Whale MK5 Universal 3-Position Manual Bilge Pump gives dependable manual bilge-water removal without relying on the boat's electrical system. Its hand-operated diaphragm design makes it useful as an independent emergency pump or as a practical primary pump in installations where simplicity and reliability are priorities.

Whale manual bilge pumps are designed around smooth pumping action, serviceable valves, and flexible mounting options. The specific deck, bulkhead, or thru-deck configuration named in this model helps place the operating handle where it remains accessible while the pump body and hose routing fit the available space.

Confirm hose size, mounting surface, pickup location, discharge route, handle clearance, and service access before installation. Keep suction plumbing short and unrestricted where practical, secure the handle when not in use, and test the pump with water periodically so it remains ready when needed. There is more in our bilge and water pumps.

• Manual operation gives an independent water-removal option.
• The model is configured for its specified deck or bulkhead installation.
• Accessible diaphragm and valve construction supports maintenance.
• Periodic manual testing confirms the pump remains operational.