Whale MK5 Thru-Deck Manual Sanitation Pump

The Whale MK5 Thru-Deck Manual Sanitation Pump is a manual diaphragm pump for transferring compatible black waste in marine sanitation systems. Its enclosed construction and large non-choke valves are designed for dependable waste movement while keeping the pump mechanically simple and independent of electrical power.

Flexible mounting orientation helps the pump fit sanitation compartments with limited space, and the serviceable diaphragm design allows cleaning without complex tools. Wide hose connections and high-capacity manual operation support practical holding-tank transfer or discharge plumbing where permitted.

Confirm hose sizes, mounting orientation, holding-tank routing, discharge destination, seacock arrangement, and applicable sanitation regulations before installation. Keep the pump accessible for cleaning, secure all waste-hose connections carefully, and test the system for smooth operation and leaks before use. Compare with our other bilge and water pumps.

• Manual diaphragm operation gives independent sanitation pumping.
• The flow path is built to reduce blockage risk.
• Flexible installation helps in confined sanitation spaces.
• Serviceable construction allows routine maintenance without complex tools.