Luphuma njani udaka kule mfumba idikiweyo? Le yingxaki enzima yokomba imfumba. Inkqubo yokomba kunye nokugungqa imfumba yesiko yile: kwinkqubo yokomba ukusetyenziswa kwesisefo, udaka kwitrevels encinci, isanti kunye namanye amasuntswana aqinileyo okwahlulahlula, ukufaka udaka kukhutshwe esinkini, isinki ezimbini ukuya echibini ezintathu, zizele imvula. Ngexesha lenkqubo yokwakha, ukusetyenziswa kwezinto zokumba ngexesha elifanelekileyo ukucoca isinki, ipuli ezimbini zokuntywila, ichibi lesithathu lokucoca, ukucoca ukuntywila kwitanki lomphunga, de kube kunyange ukupheliswa kwendalo, kuhanjiswe kwiyadi yokugcina okanye izitya. Olu hlobo lonyango lonyango, lwemfumba encinci engenakwenzeka. Ukuba inani leemfumba zininzi lodaka olukhulu, olu nyango ludaka alusebenzi.