I roto i te umanga alumina o ēnei rā, kei te piki haere tonu te hiahia mō te whai huatanga o te whakaputa me te tiaki i te taiao, ā, ka piki haere te hiahia mō ngā taputapu ahumahi whai hua me te pono. Ina koa i roto i te ao o te whakawhiti wera, he maha ngā wero e pā ana ki ngā whakawhiti wera pereti tuku iho, pērā i te ngāwari ki te aukati me te uaua ki te horoi me te tiaki. Hei whakatika i ēnei take, ko tewhakawhiti wera pereti hongere whānui poutūkua puta ake hei otinga tino pai. 

Tewhakawhiti wera pereti hongere whānui poutūHe ariā hoahoa auaha tēnei. Nā tōna tūnga poutū ahurei me tōna hoahoa awa whānui ka whakaoti pai i ngā raruraru noa o te aukati me te horoi i ngā whakawhiti wera i roto i te umanga alumina. Ehara i te mea ka mau tonu te painga tuku iho o te pai o te whakawhiti wera o ngā whakawhiti wera pereti i tēnei hoahoa, engari ka whakanui ake hoki i te pono me te ngāwari o te tiaki o ngā taputapu, ka whakarato tautoko hangarau kaha mō te whanaketanga pumau o te umanga alumina. 

Ngā Āhuatanga Hangarau me ngā Painga: 

Te Whai Huatanga Whakawhiti Wera Teitei: Mā te hoahoa auahatanga wai matatau, kawhakawhiti wera pereti hongere whānui poutūka eke ki te pai o te whakawhiti wera me te iti o te hekenga pēhanga. Ka arotauhia e tōna hanganga pereti ahurei te ara rere o te wai wera, kia tino pai ai te whakawhiti wera. 

Hoahoa Ārai-Ārai: He ngāwari te ārai i ngā whakawhiti wera pereti tuku iho nā te whakatakotoranga o ngā matūriki ki roto i ngā awa rere. Mā te hoahoa o te whakawhiti wera pereti awa whānui poutū ka maeneene ake te rere o te totoka-wai, me te ahunga o te kaha ā-papa e rite ana ki te ahunga rere, ka whakaitihia te tūponotanga o te hanganga paru, ā, ka ārai pai i te ārai. 

Te Horoi me te Tiaki Māmā: Mā te hanganga poutū me te hoahoa awa whānui ka māmā ake ngā mahi horoi me te tiaki. Ahakoa he roa te wā e whakamahia ana, ka taea tonu te horoi me te tere, ā, ka whakaitihia te utu tiaki me te wā kore mahi. 

Te Kaha o te Urutau: Ka taea e te whakawhiti wera pereti hongere whānui poutū te whakatutuki i ngā whakaritenga whakawhiti wera e uru ana ki ngā pāpāho he nui ake ngā matūriki totoka, he nui ake rānei te matotoru, e tika ana mō ngā āhuatanga uaua maha i roto i te umanga alumina. 

Te Tiaki Taiao me te Penapena Pūngao: Mā te whakapai ake i te pai o te whakawhiti wera me te whakaiti i te wā kore mahi tiaki, ka whakarite te whakawhiti wera pereti awa whānui poutū i te pai o te whakaputanga engari ka whakaitihia hoki te whakapaunga pūngao me ngā utu whakahaere, ka tutuki ai ngā hiahia whanaketanga matomato o te rāngai ahumahi. 

I roto i te umanga alumina, ko te whakamahinga o te whakawhiti wera pereti awa whānui poutū ehara i te mea ka whakarei ake i te pai o te whakaputa me te whakaiti i ngā utu tiaki engari ka whakarato hoki i te whakapumautanga whakaputa pumau me te pono ake ki ngā umanga.Te Kamupene Taputapu Whakawhiti Wera o Shanghai, Ltd., hei kaihanga whakawhiti wera ngaio, e whakapau kaha ana ki te whakarato i ngā otinga whakawhiti wera whai hua, pono, me te hoa taiao mō te umanga alumina me tua atu. He whakatau whakaaro nui te whiriwhiri i tā mātou whakawhiti wera pereti whānui poutū hei whakatutuki i te pai o te whakaputa me te whakaiti i ngā utu whakahaere.