1. Āta karohia te tāutanga o te mīhini ki roto i te papu wai, te reo irirangi mana-teitei, te hurihanga auau, arā, he kaha te papa aukume me te pokanoa wiri;
2. Me whiriwhiri te paipa kia ōrite, kia mātotoru hoki, kia ngāwari ai te tuku i te wāhanga paipa ki te ultrasonic;
3. Kia roa ai te wāhanga paipa tika, me nui ake te wāhanga paipa tika o runga o te pūwāhi tāutanga i te 10D (kia mōhio: D= diameter), ā, me nui ake te wāhanga paipa o raro i te 5D;
4. Me 30D te tawhiti o te pūwāhi tāutanga mai i te papu;
5. Me whakakī te wai ki ngā paipa;
6. Me nui te wāhi huri noa i te paipa hei whakahaere i te mahi a ngā kaimahi o te papaanga.
Wā tuku: Hepetema-04-2023