Waihangahia he putanga matatini ake o tenei rerenga Ko te tikanga ka taea te whakaaro ko te hiahia pūngao me te whakamahinga o te pūngao tuatahi he rite tonu.
Ko te tikanga, he putanga matatini ake o te rerenga kōrero ko "Ko te tikanga o tenei ko te hiahia pūngao me te whakamahi o te pūngao tuatahi e taea te whakaaro te taua, e kore e te take mo te ahumahi - rahi, ngā tipu desalination noa, e tei runga i te mana - tipu, mahi ki te pūngao kohuke. "