Hiki ke hōʻuluʻulu koke ʻia nā kiwi pōpō hoʻokele kaʻa me ka hoʻohana ʻole i nā mea hana kūikawā. ʻO nā mea maikaʻi o ka valve pōleʻa i hoʻohana ʻia i ke kaʻa ʻo ia kona ʻano paʻa, pale ʻaʻahu, a me ka mālama maʻalahi pū kekahi. He mea maʻalahi ka pahu pōpō uila iā ʻoe e wehe no ka waiwai o ke kaʻa. He mea maʻalahi hoʻi ka mālama ʻana me ka ʻole o ke kaʻina hana paʻakikī. Hana ʻia ke kino o ka pahu kiʻekiʻe o ka puʻu pōpō uila i hana ʻia me ka maʻemaʻe, ʻaʻohe mea ʻawaʻawa. ʻO ke kūpaʻa ʻino ikaika ka laulā noiʻi ākea ka hiʻohiʻona o ka pahu pōpō i hoʻohana ʻia. Hoʻohana nui ʻia ka valve ball actuated i ka hoʻokele pipeline o ka wai maʻemaʻe a me ka wai inu maka, hoʻokahe a me nā ʻōnaehana pipeline wai, brine a me nā ʻōnaehana pipeline wai, acid-base a me nā ʻōnaehana hoʻonā kemika, a me nā ʻoihana ʻē aʻe. Me ke kumu kūʻai pōpō pōleʻa uila kūpono, hiki iā ʻoe ke kiʻi i nā ʻano nui like ʻole 1 ʻīniha pōpō pōleʻa uila, 2 ʻīniha pōpō pōleʻa uila a pēlā aku. Ma ke ʻano he ʻoihana loea a me ke kuleana o ka hana ʻana i ka pōlele pōleʻa uila, ʻoiaʻiʻo mākou e hiki i kā mākou mau pahu pōpō uila ke koho maikaʻi loa no ka lawelawe kiʻekiʻe a maikaʻi.