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Whale Marine

Gusher 30

Long life- Diecast Alloy manual bilge pump range

Whale's largest high capacity heavy duty bilge pump.

Featured Product Components

Robust design

Corrosion resistant, powder-coated, die-cast aluminium alloy

Easy maintenance

No tools required for inspection or cleaning

Simple plumbing

38mm (1½") hose connections

Long term reliability

Fully protected diaphragms

Ease of use

Easy grip handle

Ease of operation

Extra long handle


High capacity double acting pump


Whale's long life diecast alloy range - robust designs for extreme conditions.

Gusher 30 is our largest capacity manual bilge pump - manufactured by hand using high grade materials based on more than 60 years experience.

  • Largest Whale Bilge Pump
  • Maximum output - delivering over 117 ltrs (31 US gals) per minute
  • Efficient operation - double acting pumps on both to and fro storkes
  • Reliability under extreme conditions - Twin diaphragms ensure pump continues working if one is damaged
  • Durability - Powder coated diecast aluminium alloy
  • Pumps oily bilge water or effluent
  • Safety guaranteed -keeps pumping even if one diaphragm is damaged
  • No tools required for inspection and cleaning 
  • 3 mounting options - Available for deck, bulkhead or underdeck (deckplate included with BP3020) mount

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
  • PBO Premium Product
  • Pump accepted on some vessels for use as an emergency fire pump

Typically installed in the following boat types
  • Sailboat
  • Sport Fishing
  • Centre Console
  • Motor Cruiser
  • Cruiser
You may also like...

CodeNameMounting Orientation
BP3000 Whale Gusher 30 - high capacity diecast alloy bilge pump - on deckOn Deck
BP3010Whale Gusher 30 - high capacity diecast alloy bilge pump - on bulkhead deckOn Bulkhead
BP3020Whale Gusher 30 - high capacity diecast alloy bilge pump - thru- deckThru Deck


  • Gusher 30 Datasheet


  • LV1215 Image
    LV1215 In-line Check Valve 25mm / 38mm (1"/ 1 1/2") Stepped Connection
  • SF5425 Image
    SF5425 Skinfitting Plstc 1.1/2" Hose Connections
  • DP3804 Image
    DP3804 Metal Deck Plate Kit With Lid
  • DV5606 Image
    DV5606 Valve Diverter 1.1/2"
  • SB4222 Image
    SB4222 Strainer / Strum Box - Side Entry
  • SB5865 Image
    SB5865 Strainer/ Strum Box - Top Entry
  • EB3488 Image
    EB3488 Hose Fitting Elbow 1,1/2"
  • YP6114 Image
    YP6114 Hose Fitting Y-Piece 1.1/2"



  • Whale Manual Pump Range (English)
  • Manual Bilge CE Declaration
  • Manual Bilge Selection Table
North America & Canada
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Middle East
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Call Whale on +44 (0)28 9127 0531

Whale Support Team USA +1 616-897-2301

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