The Whale Watermaster Onboard 8LPM 12V Water Pump FP0814 is a reliable automatic freshwater pressure pump designed for caravans, motorhomes, campervans and other leisure vehicles. Delivering up to 8 litres per minute with a 2 bar (30 PSI) cut-out pressure, this compact pump provides a smooth, consistent water supply to compatible taps and showers.
Designed for dependable everyday operation, the Watermaster combines automatic pressure control, quiet performance and durable construction. It is an excellent choice for replacing an existing onboard pump or installing a pressurised freshwater system in a campervan conversion.
One of its main advantages is its automatic pressure-controlled operation. When a tap is opened, the pump responds to the pressure drop and supplies water. Once the tap is closed and system pressure is restored, the pump automatically switches off, providing convenient water-on-demand operation.
The Whale Watermaster also features dry-run protection, allowing the pump to run dry without damage. This provides additional reassurance if the freshwater tank becomes empty during use, although prolonged unnecessary dry running should still be avoided.
For a quieter touring experience, the pump incorporates rubber mounting feet that absorb vibrations and help minimise noise transmitted through the vehicle's structure. Its fully sealed protective motor housing provides additional durability in suitable onboard installations.
The vertical mounting design makes the Watermaster particularly useful where installation space is restricted. Its compact construction allows it to fit into suitable cupboards, storage compartments and dedicated plumbing areas.
Installation is simplified by Whale 12mm Quick Connect female inlet and outlet ports, allowing direct connection to compatible 12mm semi-rigid pipework. Adaptors are also available for flexible hose installations, providing additional versatility.
The pump operates from a standard 12V DC electrical supply, drawing approximately 4 amps and requiring a recommended 5A automotive fuse. Its maximum suction lift of 3 metres allows it to draw freshwater from a suitable tank positioned below the pump.
With a maximum discharge head of 20 metres, the Whale Watermaster provides useful pumping capability for compatible leisure vehicle plumbing systems, although actual water delivery will depend on the installation.
Enjoy reliable freshwater pressure on every journey with the Whale Watermaster Onboard 8LPM Pump FP0814, combining automatic operation, quiet performance and dependable 12V water delivery.
8LPM Maximum Flow Rate: Delivers up to 8 litres of freshwater per minute under open-flow conditions.
Automatic Pressure Control: Integrated pressure switch activates and stops the pump as taps are opened and closed.
2 Bar Cut-Out Pressure: Provides automatic shut-off when the system reaches approximately 30 PSI.
Dry-Run Protection: Designed to run dry without damaging the pump.
Quiet Operation: Rubber mounting feet help absorb vibrations and reduce operating noise.
Vertical Mounting Design: Compact configuration allows installation in suitable restricted spaces.
12mm Quick Connect Ports: Compatible with Whale 12mm semi-rigid freshwater plumbing.
Flexible Hose Compatibility: Suitable for compatible flexible hose using the appropriate adaptors.
Sealed Motor Housing: Fully enclosed protective housing supports reliable operation.
Self-Priming Performance: Capable of drawing water from a suitable freshwater tank with a maximum suction lift of 3 metres.
Operating Voltage: 12V DC
Maximum Open Flow Rate: 8 Litres Per Minute
Cut-Out Pressure: 2 Bar / 30 PSI
Current Draw: 4A
Recommended Fuse: 5A Automotive
Maximum Suction Lift: 3m
Maximum Discharge Head: 20m
Pump Weight: 1.48kg
Inlet Connection: Whale 12mm Quick Connect Female
Outlet Connection: Whale 12mm Quick Connect Female
12mm Semi-Rigid Pipe Compatibility: Direct Connection Without Adaptor
13mm / 1/2″ Flexible Hose: WU1282 Adaptor
10mm / 3/8″ Flexible Hose: WU1280 Adaptor, Sold Separately
Maximum Wire Size: 2.5mm² / 13 AWG
Pump Body Materials: Glass-Filled Polypropylene
Additional Materials: Monprene, Nitrile & Stainless Steel
Mounting Orientation: Vertical
Anti-Vibration Feet: Yes
Motor Housing: Fully Sealed Protective Cover
Integrated Pressure Switch: Yes
Dry-Run Protection: Yes
Standard shipping is a flat £4.99 and is free on orders over £75. Orders using standard shipping are usually delivered within 1-2 working days of placing your order.
We will rush to dispatch your order same or next working day, but will contact you if there will be any delays. Please note that orders are not shipped on weekend or bank holidays.
A next day courier option is available for £6.99 - orders placed before 2pm will arrive the next working day, however any order placed after this time will not be dispatched until the following day.
If for some reason your order has not arrived within this time or if you have any queries regarding your order, please contact us.
If you wish for your order to be delivered to the following: Scottish Highlands, Northern Ireland or Isle of Wight/Isle of Man additional delivery charges may apply.
Please see our full delivery & returns policy and information here: Delivery & Returns Policy