Kuzadzisa zvinodiwa zveinjiniya yegungwa nekukurumidza uye nekupa mhinduro inodhura zvakanyanya, NSEN inogadzira iyo yegungwa inodzivirira butterfly valve yekutonhodza mvura yenyukireya uye desalination nezvimwewo ngura kubva mumvura yegungwa.Bata isu kuti udzidze zvakawanda kana kugadzirisa valve yepurojekiti yako.