Kuhlala kunzima kakhulu ukucoca udaka kunye nomba wangaphandle kwimibhobho yogutyulo. Ngenxa yemibhobho emxinwa kunye nemide, kunzima ukwehlisa izinto eziqhelekileyo. Ukwenza oku, sivelise uthotho lwemibhobho yokucoca imibhobho ephezulu.

Umgaqo osebenzayo wale mibhobho kukusebenzisa uxinzelelo oluphezulu lolwelo ukuvumela umbhobho ukuba uqhagamshelwe kumbhobho ukuze uzibambe ngokuzenzekelayo kumbhobho omxinwa wokuhambisa umbhobho. Indawo eyombiwe ngemilomo yamanzi igxothwa kwangoko ngolwelo oluphezulu, ukwenzela ukuba umbhobho ucoceke ngokulula nangokukhawuleza. Isizathu sokuba iqhubele phambili ngokuzenzekelayo kukuba kukho imingxunya yokuphuma emanzini exineneyo ephezulu kwicala elichaseneyo lombhobho. Xa ulwelo olunoxinzelelo oluphezulu lufuthwe ngasemva komlomo, lunika umbhobho amandla okusabela phambili. Usebenzisa eli nqaku, umlomo unokufezekiswa ngokulula. Injongo yokuqhubela phambili ngokuzenzekelayo.