1. Hana ʻia ke kiʻi ʻoniʻoni UF me nā membrane ultrafiltration, ʻoiai ʻo Ro film i hana ʻia me nā membrane reverse osmosis.

2. Hoʻohana ʻia ke kiʻi ʻoniʻoni UF no ka wehe ʻana i nā ʻāpana nui a me nā molekala, ʻoiai ʻo Ro film e hoʻohana ʻia no ka wehe ʻana i nā ʻāpana liʻiliʻi a me nā mole.
3. He ha'aha'a ko ka ki'i'oni'oni UF ma mua o ke ki'i Ro, 'o ia ho'i, e hele mau ana kekahi mau mea haumia ma ke ki'i UF, a'o ka ki'i'i'o Ro ka nui o ka hoole.
4. Hoʻohana ʻia ke kiʻi ʻoniʻoni UF i nā noi mālama wai e like me ka hoʻomaʻamaʻa mua ʻana no nā ʻōnaehana RO, ʻoiai hoʻohana ʻia ʻo Ro film i ka desalination a me nā noi wai maʻemaʻe kiʻekiʻe.
5. Pono ke kiʻi ʻoniʻoni UF i ka liʻiliʻi ma mua o ke kiʻi ʻoniʻoni Ro, e ʻoi aku ka maikaʻi o ka ikehu.
6. ʻOi aku ka maikaʻi o ke kiʻi ʻoniʻoni UF ma mua o ka kiʻiʻoniʻoni Ro, e lilo ia i mea koho kaulana no nā noi wai ʻoihana a me ke kūlanakauhale.