Europump 4 Fresh Water Pressure Pump 12V, 3.8 L/min 40 PSI, Low Consumption

The Europump 4 is a compact diaphragm fresh water pump designed for boats and RVs where a reliable water supply is needed without drawing much power. With a flow rate of 3.8 L/min and pressure up to 2.8 bar (40 PSI), this pump can comfortably supply two fixtures at once – for example, a galley sink and a shower on a small yacht. The built-in automatic pressure switch shuts the pump off at 2.8 bar and turns it back on when pressure drops (i.e., when a faucet is opened), providing consistent water pressure without manual intervention. This makes it ideal for an onboard pressurized water system, giving you household-like convenience on your boat.

A standout feature of the Europump 4 is its ultra-low power consumption – about 2 amps during operation – which is extremely beneficial for solar-powered setups or extended anchoring without recharging. It also includes a thermal overload protector to guard the motor from overheating during extended use or if overworked. The design can tolerate brief dry running (no water in the line) without immediate damage – a valuable safety margin if your water tank runs empty unexpectedly. However, prolonged dry operation should be avoided to prevent undue wear.

The pump head and hose ports are rotatable 360°, making it easy to install in tight spaces and orient the hoses in the desired direction. The pump itself is very compact (approximately 170 x 100 x 60 mm), and the inlet/outlet are barbed for 10 mm hoses. A spare pressure switch is often included, which helps extend the pump’s service life and allows quick replacement in the field if needed.

Usage and recommendations:

• Ideal for small boats (around 16–26 ft) or campervans/caravans with up to two water outlets (sink and shower), where you need moderate flow but steady pressure
• Works great as the heart of a pressurized freshwater system on board, delivering even flow to a galley and a head (bathroom) for comfortable cruising
• It’s recommended to install the pump in a dry, well-ventilated area, protected from direct splashes. The pump can be mounted horizontally or vertically (motor on top to prevent moisture accumulation around it)
• Use an intake strainer on the suction side to prevent debris or sediment from entering the pump; clean this filter regularly (e.g., monthly) to maintain optimal performance
• If you have a larger vessel or more than two fixtures (say multiple heads and a galley), consider using a higher-flow pump or an additional pump to ensure sufficient water volume when multiple outlets are in use simultaneously