Amaphampuziyimishini ejwayelekile yoketshezi yokuthutha nokuphakamisa uketshezi. Zithembele ekuguqulweni kwamandla omshini ukuze kufezwe ukuthuthwa, ukucindezela kanye nokusakazwa kwamanzi kanye nemithombo ehlukahlukene yezindaba. Ziyimishini eyisisekelo ebalulekile emikhakheni yezimboni, indlela yokuphila yabantu kanye nezolimo.

Ngokusebenza kahle, i-core inemisebenzi emihlanu emikhulu: ukuthuthwa koketshezi, ukuphakelwa kwamanzi acindezelwe, ukushintshaniswa kokushisa okujikelezayo, indle kanye nokugeleza kwamanzi, kanye nokulawulwa kwezinga loketshezi. Ingathutha amanzi ahlanzekile, indle, amanzi kawoyela kanye nemidiya egqwala kancane, futhi ihlangabezane nezidingo zezimo zokusebenza ezahlukene njengokuthuthwa komfutho ophansi, ukufuthwa komfutho ophezulu kanye nokuthuthwa kwamanzi akude.

Izimo zokusetshenziswa zibanzi: isetshenziselwa ukuphakelwa kwamanzi aphezulu ezakhiweni zomphakathi, ukuphakelwa kwamanzi kanye nokudonswa kwamanzi ezindaweni zokuhlala, kanye nokujikeleziswa kwamanzi endaweni yomoya opholile ephakathi. Isetshenziswa emkhakheni wezolimo ukunisela epulazini, ukuphambukiswa kwamanzi emifuleni, ukudonswa kwamanzi ezikhukhula kanye nokumelana nesomiso. Izimo zezimboni zifanelekile emanzini ajikelezayo efektri, ukuthuthwa kwamakhemikhali okuphakathi, amanzi okuphakelwa ngamabhoyila, kanye nokwelashwa kwendle. Ubunjiniyela bukamasipala busetshenziselwa ukukhishwa kwendle emadolobheni, ukudonswa kwamanzi emvula, kanye nezici zamanzi ezindaweni zasegadini. Ngaphezu kwalokho, isetshenziswa kabanzi ezimweni ezifana nokudonswa kwamanzi emayini, ukwanda kwengcindezi yokulwa nomlilo, kanye nokukhishwa kukasawoti emanzini olwandle, ukuhlangabezana nezidingo zokudluliswa kwamanzi kanye nokwenyuka kwengcindezi ezindaweni ezahlukene.