Ngokuqhelekileyo, imibhobho yerhasi yendalo iyilelwe ukuba ikhuseleke kwaye ayiqhumi phantsi kweemeko eziqhelekileyo.
Nangona kunjalo, ngenxa yeempawu eziqhuma kakhulu zerhasi yendalo, ukuvuza kumbhobho kunokuba yingozi kakhulu. Xa irhasi evuzayo idibana nedangatye elivulekileyo okanye umthombo obalulekileyo wobushushu, kunokukhokelela kugqabhuko-dubulo olukhawulezayo nolunogonyamelo.