I whakaritea te Pārangi Kāpehi Wai mō ēnei kei a rātou kore whakaaro mo hea mea ka hē i runga i te mutunga pai. Ko te whakamahi a tēnei mahi he pai ki ngā wāhanga e hiahiatia ana i tēnei kāpehi whakamātau, me whakauru ki ngā wāhi e pā ana i ngā panoni o te wai. Ki te iti noa tōna āhua, ka heke i te wheako o te whenua i whakaaetia ai, ahakoa tērā, ka whai wāhi mai ngā taonga hei hanga iho hoki, hei whakamana i tēnei, ka ea ngā taonga i te wā e hiahia ana ki te whakawhiti atu. Ahakoa ko te kairorohiko, ko te whare horoi, ko te marau mātauranga, kua pai noa te pārangi kāpehi wai mō tōna tikanga hei tiaki i ngā tuhinga nui i roto ia.