Kua whakahuatia i roto i te whakahaere i te pokanga tākihi hei ārai i te totohu: Me aro nui ki te ārai i te totohu uaua hohonu. E taunakihia ana te mōrearea o te hanganga totohu uaua hohonu o ngā whānau whaea i muri i te pokanga tākihi. Nō reira, e taunakihia ana ngā mahi ārai. Me akiaki i te ara wawe tonu i te moenga, i runga i ngā āhuatanga mōrearea nui mō te hanganga o te totohu, ngā kōwhiringa takitahi e mau ana i ngā tōkena rapa, ngā tono ārai i ngā taputapu hauhautanga wā poto, te whakakī anō i te wai, me te werohanga kiri o te heparin ngota-iti.