I ētahi wā, ka taea e te mīhini whakamatao wai hau-whakamatao e whakamatao ana i te mīhini tapahi whakarewa taiaho te whakaoho i te whakaoho. Ka tangi te pi, ā, ka taurite te waehere hapa me te pāmahana wai i runga i te papa whakahaere o te kaiwhakahaere pāmahana. I tēnei wā, ka taea e ngā kaiwhakamahi te whakamutu i te pi mā te pēhi i tētahi pātene, engari kāore e taea te tango i te waehere hapa kia whakakorea rā anō te āhua whakaoho. Hei tauira, mō te mīhini whakamatao wai hau-whakamatao S&A Teyu CW-6200, ko ngā whakaahua waehere hapa e whai ake nei. Ko te E1 te tikanga mō te pāmahana rūma tino teitei; ko te E2 te tikanga mō te pāmahana wai tino teitei; ko te E3 te tikanga mō te pāmahana wai tino iti; ko te E4 te tikanga mō te pūoko pāmahana rūma he; ko te E5 te tikanga mō te pūoko pāmahana wai he. Me tautuhi tuatahi e ngā kaiwhakamahi te take tūturu, kātahi ka whakatau i te raruraru.
Mō te hanga, kua whakangaohia e S&A Teyu te neke atu i te kotahi miriona yuan mō ngā taputapu hanga, hei whakarite i te kounga o te raupapa o ngā tukanga mai i ngā wāhanga matua (whakamātao) o te pouaka whakamatao ahumahi ki te whakarewa i te pepa whakarewa; mō te mahi kawe taonga, kua whakatūria e S&A Teyu ngā whare putunga kawe taonga i roto i ngā tāone nui o Haina, ā, kua tino whakaitihia te kino nā te kawe taonga tawhiti, me te whakapai ake i te whai huatanga o te kawe waka; mō te ratonga muri-hoko, e rua tau te wā whakamana.
