1. Pāmahana ā-taiao: 5℃-45℃
2. Te haumākū whanaunga: 20%-80%
1. Ka mahi te pūoko pēhanga aunoa me te mana rorohiko iti hei whakatutuki i te whakaputa aunoa o te wai parakore, te pūnaha whakaatu mahi tangata.
2. Kei te whakamahi te paipa katoa i te atanga mono tere, he tauranga tuku wai paerewa mō ngā taputapu o waho, ka taea te whakauru ki ngā peere o waho, he maha ngā whakaritenga o ngā peere rokiroki wai hei whakatutuki i ngā hiahia rerekē;
3. He tiwhikete NSF ngā paipa katoa, e whakamahi ana i te hoahoa hononga tere, he ngāwari ki te tāuta me te tiaki, he watea ake te tiaki;
4. He iti ngā whakaritenga kounga wai, he pūnaha maimoatanga i mua i hangaia kia āta hangaia, ka taea te tukatuka pai i ngā wai mata rerekē;
5. He nui te wai e puta mai ana, he roa te ora o ngā taonga e pau ana, he pai te whakamahinga, he iti te utu whakahaere;
6.Kaupapa horoi ā-tauine aunoa mō te kiriata RO, whakaroa i te roa o te ora o te kiriata RO;
7. Te ātete ipurangi, te kawe hiko, te tika 0.01, te aroturukitanga wā-tūturu o te kounga para wai tino-parakore.
8. He diaphragm RO kawemai, e whakaatu ana i te huinga o te roa o te ora o te kiriuhi RO me te kounga wai kounga teitei;
9. He kapia moenga whakauru hiko, he hoahoa tāke horoi kaha nui, kia mau tonu te kounga wai me te pumau o te wai;
*GPD = karani/rā, 1 karani = 3.78 rita;
* Ka pā te kounga o te wai tāuru ki te kounga o te wai parakore me te roa o te ora o te pou tātari;
* Kapia moenga whakauru karaehe hiko: te kaha whakawhiti katoa o te rōrahi mmol/ml≥1.8;