Booster pump Metabo HWW 4000/25 G

The Metabo HWW 4000/25 G booster pump is a compact and robust unit designed for irrigation and domestic water supply. It delivers up to 4000 litres per hour at a maximum operating pressure of 4.6 bar and can lift water to a maximum delivery height of 46 metres. Powered by an 1100 W motor and built with protection rated to IPX4, this pump is suited to continuous use in garden, allotment and small-scale household water systems.

Advantages

The pump combines a high flow rate with a substantial delivery height, enabling stable water distribution for sprinklers, drip irrigation and pressurised domestic supply. Its 1100 W motor provides consistent performance under variable conditions while the IPX4 splash protection increases operational durability in outdoor or humid environments. The overall construction is aimed at straightforward installation and low-maintenance operation.

Suitable for

• Irrigation of gardens, lawns and allotments
• Pressurised supply to domestic fixtures such as taps and showers
• Boosting pressure from wells, rainwater tanks or storage cisterns
• Small-scale horticultural or greenhouse watering systems

Key specifications

• Maximum flow rate: 4000 litres per hour
• Maximum operating pressure: 4.6 bar
• Maximum delivery height: 46 metres
• Rated power: 1100 W
• Ingress protection: IPX4 (splash-resistant)
• Application: booster pump for irrigation and domestic water supply

How to use

Install the booster pump on a firm, level surface near the water source and connect inlet and outlet lines according to local plumbing codes. Ensure suction lines are airtight and primed if required by the installation. Connect the power supply in accordance with the electrical specifications and safety requirements; use a suitable residual-current device (RCD) where applicable. Start the pump and monitor system pressure and flow; adjust valves and pressure controls to achieve the desired output. Regularly check connections for leaks and ensure filters or strainers are clean to prevent debris entering the pump.

Recommendations

For reliable long-term operation, protect the pump from freezing temperatures and direct exposure to heavy rain when not rated for continuous immersion. Fit a coarse filter on the inlet to reduce the risk of solids entering the pump. For installations supplying domestic fixtures, include a pressure vessel or pressure control to minimise cycling and extend pump life, and follow manufacturer guidance for electrical protection and grounding.