E waru katoa ngā wāhanga o te ringa e whakaratohia ana mō ngā mahi whakamātautau kiri, e whā o ēnei he tohu whero rerekē te tae. Mēnā ka werohia tika te wai, ka puta he pikot ki te kiri, ā, i muri i te tangohanga o te wai, ka ngaro te pikot. Ka taea te wero i ia wāhi i ngā rau wā, ā, ka taea hoki te whakaora mā te hiri.