Nō te whakangāwangawa i te wai, ka whakaaetia ngā tūru roto kōpū hei whakaputa i ngā matū e hiahia ana ki te whakatika i te wai mā te tango i ngā hākupu ā-wāhi me ngā momo kē. Kua hanga ngā kōpū o ngā tūru nei ki te tiaki i te mana o ngā matū whakatika, nā reira e kitea ana ngā pūnaha e pai ana ki te whakatiki i ngā raruraru pūtaiao rānei me te whakamutunga i te mate. He whakauru pai ngā raraunga me ngā rārangi whakawhiti i runga i a rātou hei whakamana i te tuku tika o ngā matū whakatika ki ngā whare tirotiro wai rānei ki ngā wāhi mahi ā-motu. I whakatakoto ēnei tūru roto kōpū i te ara haumaru, ko ngā pūtake whakarite i te korehua hei whakatika i te pakari, me te whakaae ki ngā tikanga whakahī i mua mō te tāputu i ngā mona pūtaiao, kia whakatūria te tuku pai o ngā matū whakatika mo te whakapono i te wai.