Using the telescopic spray lance, even hard-to-reach areas (e.g., under walls) can be cleaned quickly and easily. Another advantage of the 180-degree adjustable hinge is that greenhouses, sloping roofs, and carports can be cleaned. By operating with the wall and glass cleaning attachments, all hard-to-reach areas can be cleaned uniformly and effectively: four high-pressure nozzles eliminate stubborn dirt on various surfaces.