Ko te hiri takirua, te taupoki tiaki e whakanohoia ana ki te mowhiti o roto e tiaki ana i ngā matūriki paru taratara, ā, e hanga ana i te arai me te wāhanga rau o te hiri; kātahi ko te momo hiri S, me te arai i waenganui i te wāhanga rau me te ngutu rapa e whakahaere ana i te hiri whakapā. He rite tonu te waku me te tere ki te S engari he pai ake te tiaki i ngā matūriki paru taratara. He pūnaha hiri tino pai: ka tiaki te wāhanga rau i te hiri mai i te oneone, te puehu me ngā matūriki taratara. I taua wā anō ka hanga te arai me te wāhanga rapa. Ka whakaratohia e te wāhanga rapa te hiri whakapā e ārai ana i te urunga o ngā paru angiangi, te wai, te makuku, te mamaoa me ētahi atu. He pai mō ngā āhuatanga taumaha nā te mea he pai ake te tiaki i ngā mea ke. Ka whakamahia me ngā peera Y (paerewa).