(57) In order to be able to clean a floor rapidly, a floor is sprayed with high-pressure
jets of clean water by a spray unit (23) and the dirty water and dirt which have been
sprayed loose are sucked up by a suction unit (27), said spray unit (23) and suction
unit (27) being located on a cleaning vehicle (1). In this process, clean water is
taken from a clean-water tank (19) and the dirty water is sucked into a dirty-water
tank (21), which are also situated on the cleaning vehicle.
The dirty-water tank (21), should it be full, is emptied into a larger dirty-water
tank (53) on a tank lorry (49). In this way, the cleaning vehicle (1) does not have
to go to a tip in order to be emptied, but it can discharge the dirty water into a
tank lorry (49) directly nearby. Should the tank lorry be full, it will go to the
tip while the cleaning vehicle (1) can continue working. Because of this, cleaning
can continue uninterruptedly.
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