Already have an Knosti in use. Now use 1 Knosti for pre-cleaning with self-compiled cleaning fluid, the second to finish washing with original DISCO ANTISTAT Mixture. After 6-8 LP's to filter the liquids (of course separately) with coffee filter. The result is depending on how dirty the LP's partly clearly visible on the filter. Is certainly more difficult than with a semi - or fully automatic device; for my purposes it is enough and am satisfied with the result.