Umbhobho yigama elijwayelekile lengxenye yonke. Ngokuvamile yakhiwe ngengxenye eyodwa noma eziningi. Umbhobho uyingxenye yokugcina yohlelo lonke lokufafaza nengxenye ebaluleke kakhulu. Ikhwalithi yayo ithinta ngqo umphumela wesifutho.

I-orifice ibhekisele ekuphumeni kwamanzi kombhobho. Iningi lama-orifices wombhobho liyindilinga. Ngokwethiyori, okuncane kobubanzi bomlomo wombhobho, ukusondela kwefomu lokufafaza kuyinkungu, kukhulu i-orifice, futhi kukhulu ukugeleza kwesifutho. Mikhulu, ifana nemvula enkulu noma imvula enkulu. Isimo sesifutho sombhobho ngokuvamile sinqunywa ukuhlanganiswa kobume be-orifice nokwakheka kwangaphakathi kombhobho. Ukugeleza kuketshezi ngesivinini esikhulu, futhi uma i-orifice iyindilinga, ukuma kwejet kuyisigaxa esigcwele. Uma kunqunywa ama-groove amabili amise okwe-V ku-orifice eyindilinga, ukuma kwejet kuzoba yisigaxa esiyisikwele. (Isimo sePiramidi). Kungabonakala ukuthi i-orifice inomthelela omkhulu kumbhobho.

Singumkhiqizi wombhobho wombhishobhi ovela eChina, onomklamo ocebile wombhobho kanye nesipiliyoni sokukhiqiza, ukuxazulula zonke izinkinga ekukhetheni umlomo wombhobho, ukuhlelwa, nokufakwa isicelo kwakho. Uma ufuna ukuthola ikhotheshini yomkhiqizo ephansi, sicela ukhululeke ukuxhumana nathi.