Chii chinonzi sando yemvura?
Water hammer ndiyo mhedzisiro isinganzwisisike yekumisa mvura iri kufamba muchirongwa chemvura; simba remvura rinoita se "hammer" uye rinogona kugadzira kukanganisa kwakanyanya-kumanikidza kunokuvadza, kana kuparadza pombi, mavharuvhu, kana zvishandiso.  Somuenzaniso, kungava nyore kuvhara vharuvhu remvura. Asi pashure penguva yakati ingaputika nemhaka yokumanikidzwa kamwe kamwe kwemvura yose "iri kumusoro" ichimanikidzirwa kumira.