Ukugcinwa njalo kwe uhlaka lwejethi yamanzi izesekeli zihambisana nokusebenza okujwayelekile komshini, zandise impilo yesevisi ye-jet loom yamanzi, futhi ngesikhathi esifanayo, zinganciphisa ukusetshenziswa kwezinto zokusetshenziswa. Ngakho-ke ake sikhulume ngomsebenzi ojwayelekile wokulungisa kanye nemininingwane yezesekeli ze-jet loom yamanzi.
Kunezinto eziningi okufanele zenziwe ekunakekeleni okuvamile kwezingxenye zejethi yamanzi: kunezinto eziningi okufanele zenziwe ukuze zigcinwe njalo, futhi izidingo zobuchwepheshe nazo ziphakeme kakhulu. Izinga lesondlo linzima ukulifinyelela, ngakho-ke kuyadingeka ukubika ukuthi izisebenzi zidinga ukwazi amasu anhlobonhlobo. Ngakho-ke, ukuze ukwazi ukwenza umsebenzi wokulungisa njalo, kufanele uzilungiselele kuzo zonke izici.
Umsebenzi wokulungisa izingxenye zejethi yamanzi ngokuyinhloko uwukugcina ingxenye ngayinye yemishini ihlanzekile futhi icocekile, ukuze okokusebenza kukwazi ukusebenza ngendlela evamile ngempela. Ngakho-ke ngendwangu yejethi yamanzi, kufanele siqale kuyo yonke imininingwane yomsebenzi. Izikhathi eziningi, okudingeka sikwenze yilolu hlobo lomsebenzi.
Uhlaka lwejethi lwamanzi lisebenzisa amanzi njengamandla, futhi sidinga nokugcina ukugeleza kwamanzi phakathi nenqubo yokusetshenziswa, ukuze umsebenzi wayo yonke inqubo uphelele ngokuqhathaniswa.