A system for clarifying liquids, having particular utility in dry cleaning operations. The system includes a filter apparatus which includes a plurality of axially spaced filter elements each having a high pressure side through which unclarified liquid is directed and upon which solids in the unclarified liquid accumulate and a low pressure side in communication with a liquid outlet of the filter apparatus. A liquid agitating impeller is disposed between respective adjacent pairs of the filter elements for defining a predetermined spacing between the filter elements and for creating liquid turbulence and agitation between the filter elements in response to rotation of a common shaft upon which the filter elements and impellers are mounted for effecting substantially complete removal of accumulated solids on the high pressure sides of the filter elements without movement between the impellers and filter elements. The dislodged solids and an isolated quantity of the liquid are directable into a still for vaporizing and condensing the liquid while leaving the solids within the still for disposal. The still includes an auger adapted for alternately moving the contents within the still in opposite axial direction, while simultaneously alternately lifting the contents upwardly against opposite sides of the still for enhancing heating and vaporization of the liquid and ultimate drying of the remaining solids.