I totonu o le faʻaogaina o le suavai otaota ma le mamafa o le faʻaogaina o le suavai otaota a le Western Metallurgical Plant, o loʻo faʻaaogaina a matou mita pH, mita eletise eletise, fua faʻatatau o le ultrasonic ma isi mea faigaluega.A maeʻa faʻamatalaga a le tagata faʻaoga i luga o le upega tafaʻilagi: E faʻaoga lelei a matou meafaifaʻaili, fesoasoani i le fale gaosi oloa e sui ai meafaifaʻaili faʻaulufaleina muamua, faʻasaoina le tele o tau o meafaigaluega.
