Whale Pump Gulper 320 12v

The Whale Gulper 320 12V Pump is a high-performance waste water and grey water pump designed for use in caravans, motorhomes, boats, and campervans.

Built using Whale’s proven diaphragm pump technology, the Gulper 320 delivers powerful, reliable water transfer without clogging — making it ideal for handling shower waste, sink drainage, and grey water systems. Unlike traditional pumps, it features non-choke valves and no internal filter, reducing maintenance and ensuring consistent performance.

With its compact design, 360° rotating head, and dry-run capability, this pump is perfect for tight installations and demanding off-grid environments.

Why Choose This Whale Gulper 320 Pump?

• High-capacity 19 litres per minute flow rate
• Non-clog diaphragm design – no filter required
• Can run dry without damage
• Ideal for grey water, shower, and sink waste systems
• Reliable Whale engineering
• Easy to install and maintain

Key Features

• 12V DC diaphragm pump for leisure vehicle systems
• Flow rate of approx. 19 LPM (litres per minute)
• Self-priming up to 3 metres
• Maximum head up to 3–4 metres combined lift
• 360° rotating pump head for flexible installation
• Suitable for 19mm (¾") or 25mm (1") hose connections
• Durable glass-filled nylon construction
• Quiet operation with anti-vibration mounting
• No filter = minimal maintenance and no clogging

Why Buy This Pump?

If you're upgrading or replacing a waste water pump, the Whale Gulper 320 is one of the most reliable solutions available.

Its ability to handle hair, debris, and grey water without clogging makes it ideal for caravan showers and sinks, while its dry-run capability ensures long-term durability even in demanding conditions.

Perfect for campervan conversions, motorhomes, and off-grid systems, this pump offers peace of mind and consistent performance where it matters most.

Product Specifications

Total Product Weight

The Whale Gulper 320 12V pump weighs approximately 1.6kg, reflecting its robust construction and high-performance design.

What’s Included

• 1 x Whale Gulper 320 12V Pump
• Mounting base / strap
• Hose adaptors (19mm / 25mm)
• Strainer (on selected versions)

Where It Fits

Designed for use with:

• Caravan grey water systems
• Motorhome shower drainage systems
• Campervan sink and waste water setups
• Marine bilge and waste water systems
• Off-grid water systems

SEO Vehicle Compatibility

• VW Transporter campervan conversions
• Fiat Ducato motorhome builds
• Peugeot Boxer campervan conversions
• Citroen Relay van conversions
• Ford Transit campervan setups
• Bailey caravans
• Swift caravans
• Elddis caravans
• Coachman caravans

Ideal For

• Caravan shower waste pumps
• Motorhome grey water systems
• Campervan conversions
• Off-grid plumbing systems
• Sink and basin drainage
• Marine and boat bilge pumping

Fitting Instructions

1. Mount the pump in a dry, accessible location above the water level where possible.
2. Connect inlet and outlet hoses (19mm or 25mm).
3. Secure using the mounting base or strap.
4. Wire to a 12V power supply with a 10A fuse.
5. Prime the system and test for correct operation.
6. Check for leaks and ensure smooth water flow.

Important: This pump can run dry, but correct installation and wiring are essential for optimal performance.