Khomo lochepetsa phokoso nthawi zambiri limapangidwa kuchokera kuzinthu zowuma kwambiri, zolimba.Zida zolimba, zolimbazi zimagwiranso ntchito bwino powonetsanso mawu kugwero lake.
Kutha kwa chitseko kuchepetsa phokoso kumatchedwa mphamvu yake yotulutsa mawu (TL).Kukwera kwa TL, zotsatira zake zimakhala bwino.
Mavoti a kalasi yotumiza mawu (STC) amathetsa vutoli popereka mtengo umodzi pakuchita kwamayimbidwe pakhomo.Kukwera kwa mtengo wa STC, kumapangitsanso bwino komanso kumagwira ntchito bwino.