Abstract: The specification discloses a hot-water extraction unit of the type commonly referred to as a "steam cleaner". The vacuum tank of the unit is vertically divided into substantially separate first, second, third, and fourth volumes by a deflector divider. The vacuum wand communicates with the first volume, the first volume communicates with the second volume by an aperture at the bottom of the deflector divider, the second volume communicates with the third volume by an aperture at the bottom of the deflector divider, the third volume communicates with the fourth volume by an aperture in the deflector divider, and the riser pipe is located in the fourth volume.

Abstract: The aspirating liquid flow tube of a dual concentric tube assembly for a vacuum cleaner dump bucket is closed at its upper end, and is provided with opposed radial nozzles for discharging dirty liquid induced by the vacuum promoted air stream tangentially against the curved sidewall of the dump bucket dome above the ring baffle to facilitate separation of the liquid from the air stream and distribute the liquid about the full circumference of the dome sidewall prior to contact with the ring baffle to increase dump bucket capacity without introduction of liquid into the hollow riser tube leading to the vacuum source.