Izicelo: Iphinda ibhande izinhlamvu ezahlukene (izinsimbi zokupheka, izinsimbi zokuhlanza, njll.) ngokushesha, ibuyisela ubukhali ukuze kube nokusika okuphumelelayo kwezinkomo, imifino, nezithelo.
Izinzuzo: Izinto zensimbi engagqwali zivikela ukugqwala; ilula ukuze igcinwe, kulula ukuyisebenzisa, futhi iqinile ukuze isetshenziswe isikhathi eside.