The holder (1) has an insertion compartment (3) for accommodating a front end of a cleaning lance. The insertion compartment runs from an insertion opening (2) for the cleaning lance at an angle downward to a drain end with a fluid drain. The holder has a ...

A foam reactor (9) prepares and expels cleaning fluid through the wiper, while a cleaning sponge retains the cleaning fluid in the central area of the wiper. A suction pump (12) sends the used cleaning fluid together with the resultant residues into a rese...