Imishini yezimboni, izinhlelo zokufudumeza nezomoya, amathuluzi omshini.
Isetshenziswa kakhulu ezindaweni zangaphakathi ezomile, ezimanzi nezimanzi (okuhlanganisa nezingxube zikawoyela wamanzi), kodwa hhayi ukusetshenziswa ngaphandle.
Ukufakwa okugxilile ngaphansi kwezimo zomthwalo omaphakathi, nezinhlelo zokusebenza ezinokuguquguquka ngezikhathi ezithile mahhala, ukunyakaza okungaqhubeki ngokuqhubekayo ngaphandle komthwalo oqinile noma ukuqondiswa okuyimpoqo.