How do I start up Kärcher booster pumps?
Ensure that a reservoir of water is available (e.g. a filled cistern) and that water will be replenished as it is used.
The suction and pressure pipe system, along with supplementary accessories, must have been installed.
On initial start-up you must fill the pump with water (c. 2.5 litres).
The pressure tank of a BPP booster pump must be filled with air pressure at 1.8-2.0 bar.
On the pressure side, the system must first be opened on the highest water outlet, so that water can be pumped to prime the system.
The pump starts up promptly when the plug is plugged into the electrical socket. It must pump until water is being pumped evenly, then the pressure-side system must be closed (by turning off the water tap at the highest point).
The pump then builds up pressure and finally shuts down automatically.