Inogona kushandiswa kugadzirwa kwemishonga yepakati.Inokuvadza zvishoma kumvura.Usarege zvigadzirwa zvisina kudiluted kana hukuru hukuru huchisangana nemvura yepasi, nzira dzemvura kana sewage system.Pasina mvumo yehurumende, usaburitse zvinhu munzvimbo yakatenderedza kudzivirira maokisi, acids., mhepo, carbon dioxide contact, chengeta mudziyo wakavharwa, wouisa muchokudhonza zvakasimba, uye chengeta munzvimbo inotonhorera, yakaoma.