Nā kaulahao kūikawā Seris
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Na kaulahao wili ko, a me na mea pili
I ka ʻōnaehana hana o ka ʻoihana kō, hiki ke hoʻohana ʻia nā kaulahao no ka lawe ʻana i ke kō, ka ʻohi wai, ka sedimentation a me ka evaporation. I ka manawa like, ʻo ka ʻaʻahu kiʻekiʻe a me nā kūlana corrosion ikaika e hāʻawi i nā koi kiʻekiʻe no ka maikaʻi o ke kaulahao. Eia kekahi, loaʻa iā mākou nā ʻano mea pili no kēia mau kaulahao.