Isihlungo esenziwe ngenetha yensimbi ecolekile noma ngendwangu, esisetshenziselwa ukuhlunga izingxube zemibala, ukukhama umbala, ukuhlunga impuphu, nokuhlukanisa okuqinile kokuwuketshezi. Usayizi wembobo yenetha yikho okunquma ukuthi yini edlulayo — uma inetha icoleke kakhulu, umbala uba mnene kakhulu futhi okukhishiwe kucwathe kakhulu.