Iingcango zomlilo zineenzuzo ezintathu ezinkulu. Okokuqala, ukusebenza kwayo kokumelana nomlilo kunye nobungqina bokuqhuma kulungile. Okwesibini umgangatho omhle, ubunzima obulula kunye nokuqina. Okwesithathu, ukhuseleko: nokuba kukho ugqabhuko-dubulo, luya kuhlala luqinile kwaye aluyi kugqabhuka luqhushumbo. Wamkelekile ukuba uthethe nathi malunga nemiba yomnyango womlilo.