Tuatahi, me mārama tātou he aha te mahi a te rākau whakamahana. E ai ki tōna ingoa, ko te rākau whakamahana he mea hei whakamahana i te wai. He tino whai hua i ngā wāhi iti te pāmahana i te takurua, nā te mea ka taea e ia te ārai i te hukapapa o te wai i roto i te pouaka whakamatao wai hauhautanga. I te raumati, he tino teitei te pāmahana o te taiao, nō reira kāore he take ki te tāpiri i te rākau whakamahana ki roto i te pouaka whakamatao wai hauhautanga.
Whai muri i te 18 tau o te whanaketanga, ka whakatūhia e mātou he pūnaha kounga hua pakari, ā, ka whakaratohia he ratonga whai muri i te hoko kua tino whakapumautia. Neke atu i te 90 ngā tauira pouaka whakamatao wai paerewa me te 120 ngā tauira pouaka whakamatao wai hei whakaritenga. Me te kaha whakamatao mai i te 0.6KW ki te 30KW, ka taea te whakamahi i ā mātou pouaka whakamatao wai hei whakamatao i ngā momo pūtake taiaho rerekē, ngā mīhini tukatuka taiaho, ngā mīhini CNC, ngā taputapu hauora, ngā taputapu taiwhanga me ētahi atu.
