Mutsara wokutanga: Pazasi pe hydrometer pane girobhu duku remarambi uye kumusoro pane pani yezviyereso. Mutsara wechipiri: Pazasi pe hydrometer pane girobhu rakayerwa uye kumusoro pane pani yehuremu hushoma. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
Kwete