Media enter into the cylinder through a connecting pipe on one side of the dirt separator, and the connecting pipe on the other side is connected with the filter perforated pipe in the cylinder. The filter perforated pipe consists of numerous 3mm-diameter apertures. Impurity particles in the media will be filtered out and stored at the bottom of the cylinder; and media without impurity particles will flow out of the cylinder through the outlet. Open the blow-down valve to discharge the impurity particles. It is recommended to install a valve between the inlet of dirt separator and the pipeline; when eliminating impurities, close this valve and open the blow-down valve, to let the media flow through the filter mesh and be cleaned.