Mugihe utegura ibiruhuko byinyanja, kimwe mubikoresho byingenzi gushyiramo kurutonde rwawe rwo gupakira ni ibirahuri byiza byizuba. Iyi myadahure yihariye yizuba yagenewe kugabanya urumuri ruva hejuru yerekana, kubagira amahitamo meza yo ku mucanga aho urumuri rwizuba rugaragaza amazi n'umucanga. Muri iyi buyobozi, tuzagenzura inyungu z'amadarubi yizuba ya polarized a