I ngā waka, he tino maha te uara o te pūpūhi wai o te impeller. Ko te pūpūhi wai o te impeller he whakamārama i te wai ki rō, ki waho hoki o te motor o te waka. Koinei te whakamārama i te motor kia makariri, kia rere pai hoki. Ki te kāore te pūpūhi wai e mahi pono, ka tēnei te motor ka tōmuri, ā, ka tāwhai pea te pakaru. Ka whakamāhupe tēnei i tēnei rā pai ki te wai. Nō reira, he mea matua te tāwhai i te tika pūpūhi wai o te impeller mō tō motor kākāriki wāhi. He maha ngā whakamātautau a YIQIN, kia māmā ake ngā kaitiaki waka ki te rapu i ngā mea e hiahiatia ana.
Te whakamātautau i te pūmāhi wai tika he rerekē, engari kāore he paku pākaro! Tuatahi, whakaaro mai i tōu mōtāhi wāhanga. He rerekē ngā mōtāhi, nō reira he rerekē ngā pūmāhi e hiahiatia ana. Tirohia te tau o tōu mōtāhi wāhanga. Ko tēnei kōrero kei te tuhinga, i runga i te mōtāhi anō, i te nuinga o ngā wā. Arā āhua, whakaaro mai i te rahi o tōu waka. Ko ngā waka nui he rerekē ngā pūmāhi e hiahiatia ana kia mau tonu te makariri o te mōtāhi. Mēnā kāore koe i te mātauranga, tāpiri mai ki tēnei wāhanga o YIQIN. Ka tāwhai ia koe ki te pūmāhi tika i runga i tōu mōtāhi me tōu waka. He take hou anō ko te kōpae o te pūmāhi. Ā, he rerekē ngā pūmāhi: ā, ēnei i hanga mai i te pākī, ā, ēnei i hanga mai i te parahi. Ko ngā pūmāhi parahi he roa ake te ora, engari he paku paku ake. Mēnā e whakamahinga ana koe i tōu waka i ngā wai kākāriki, me whai koe i tēnei pūmāhi hei whakamātautau i tēnei taumata. Ko ngā wai kākāriki he paku pākaro i ngā kōpae, ka rere ake te riri, ka rere ake te pakaru. I te mutunga, whakaaro mai i tōu tāpoi. He rerekē ngā utu o ngā pūmāhi, nō reira he pai te whai i tēnei e taea ana te whakamāhi i tōu tāpoi, ā, he pai hoki. Whakamāha mai, he pai ake te whakamāhi i tēnei pūmāhi pai, kia kore ai koe e whakamāhi i ngā moni nui atu i muri iho hei whakamātautau.