Iminyango yomlilo ingahlukaniswa ibe iminyango yomlilo yekhwalithi yensimbi, iminyango yomlilo wezinkuni, iminyango yomlilo wengilazi, iminyango yensimbi nezinkuni zomlilo. Umnyango womlilo wensimbi owenziwe ngensimbi yekhwalithi ephezulu kanye nezinto eziphikisayo awukwazi ukuhlangabezana nezidingo zokuphepha kuphela, kodwa futhi uqinisekise ukusetshenziswa okuzinzile isikhathi eside ngaphandle kokulimala, okuye kwaqashelwa amakhasimende amaningi.