Iswishi yezinga elintantayo uhlobo lweswishi olulawula ukuphakama kwezinga loketshezi
esitsheni. Isebenzisa ukuhanjiswa koketshezi ukuvula noma ukuvala othintana naye
okukhiphayo lapho izinga loketshezi lifinyelela ukuphakama okuthile, bese kuqapha ngokuzenzakalelayo
ukusebenzisa noma ukumisa iphampu yamanzi ukuze kufezwe injongo yokulawula inani
uketshezi olusesitsheni.
Isicelo: Ngokuvamile isetshenziswa emakhaya, ezimbonini, ezindaweni zebhizinisi, emphakathini
izindawo kanye nezinyeizindawo lapho kuhlolwa khona ngokuzenzakalelayo ukuhlinzekwa kwamanzi kanye nokudonswa kwamanzi
izinhlelo ziyadingeka. Inezincaneusayizi kanye nencazelo ephelele. Kungaba kabanzi
esetshenziswa ezinhlelweni zamanzi zasekhaya, ekuhlanzweni kwendleizinhlelo, kanye noketshezi olukhethekile
izinhlelo zokuhlinzeka.