
Ko ngā tūpuna waipara, e kiia ana hoki ko ngā whakamārama lamella, e whakamahia ana hei tango i ngā totoka i roto i te tukatuka wai para. Ko ngā tūpuna waipara he kōtaha kirihou kotahi kua honoa hei ngongo. Mā tēnei hoahoa ka whakareatia te horahanga para ki te 15 ngā wā mō ia mita tapawha o te mata, ā, ka āwhina ki te whakapai ake i te parahanga i roto i te wai me ngā tipu maimoatanga wai para.
Mā ngā momo whakatinanatanga rerekē ka pai ake te tukanga me te whakaiti i te utu o te tipu.
1. He pai mō ngā mahi wai paru.
2. He māmā ake te tuku i te wai kino i puta mai i te aukati, i te ngaro rānei o ngā pūwero.
3. Ka ngawari te tohatoha anō o te wai i a ia anō.
4. He pai mō ngā taiao puehu, ngā taiao ngahere rānei.
5. Ngāwari te tiaki.
6. Te roa o te ora ratonga.
7. Kei te wātea ngā hoahoa pāmahana-tiketike.
8. Ngā hoahoa e wātea ana mō ngā kawenga hukapapa taumaha.
| Pūaha (mm) | Matotoru (mm) | Te rahinga (ngā pcs/m2) | Taumaha (kg/m2) | Horahanga Mata (m2/m3) |
| 25 | 0.40 | 62 | 30 | 139 |
| 35 | 0.45 | 42 | 25 | 109 |
| 50 | 0.50 | 30 | 19 | 87 |
| 80 | 0.80 | 19 | 20 | 50 |
Ka tukuna atu hoki e mātou ngā momo ngongo wai āhua NGONGO, he mea wera mō te maimoatanga wai puna.