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Whale Mk 5 Universal Manual Bilge Pump

Based on the original Henderson pump a design that stands the test of time. Robust and lightweight polypropylene  high capacity manual bilge pump range with three mounting options. This clever bilge pump design allows great versatility in installation so that you can fit the pump in the orientation to best suit your boat.

Key Features

  • Whale’s most versatile high performance pump design
  • 3 mounting orientations – 1 pump- (on-deck, thru-deck, on-bulkhead)
  • High Performance – flow rate (66 ltrs / 17.5 USgals / min)
  • Reliability – non choke valves and fully enclosed protected diaphragm
  • Ease of maintenance – inspection hatch (no tools required)
  • Suitable for pumping bilge water,saltwater or diesel


  • Hose Connections : 38mm (1 1/2")
  • Maximum Suction Lift : 4.5 m (15 ft)
  • Maximum Discharge Head : 4.5 m (15ft)
  • Suction Lift : 1 m (3ft)
  • Discharge Head : 0.5 m (1.5 ft)
  • 45 Strokes per Minute : 42 ltrs (11 US gals)
  • 70 Strokes per Minute : 66 ltrs (17.5 US gals)

It is important to ensure that a vented anti-syphon loop is incorporated in the system

 Awards and accreditations

ISO150831- Suitable as a primary bilge pump on boats equal to or greater than 12 m (40ft) in accorance with ISO150831

Approved by Lloyds (MCA) and USCG (Mk5 Universal MCA - Size 2)

Life boats approval

Mounting Orientation: 3 possible orientations - 1 pump

Range: Tough and lightweight Polypropylene

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