Ngokutsho kokumelana nomlilo ohlukeneyo kweengcango zomlilo zetsimbi, ukuxhathisa umlilo kunokwahlulwa ngamabakala amathathu: A, B kunye no-C. Iingcango zomlilo zensimbi zamabakala ahlukeneyo zingasetyenziswa kwiindawo ezahlukeneyo. Iingenelo zeengcango zomlilo zensimbi zibenza ukuba bathathe isabelo esikhulu semarike kwizakhiwo zoluntu.