ʻI he tafaʻaki ʻo e malu fakaʻuhila, tautautefito ʻi he ngaahi ʻatakai fakatuʻutamaki, mahino ʻa e faikehekehe ʻi he vahaʻa ʻo e ngaahi puha fale mo e ngaahi puha ʻoku ʻikai ke ʻi ai ha meʻa. Ko e ngaahi faikehekehe mahuʻinga ʻeni:
1. Ko hono fakaʻaongaʻi ʻo e ngaahi puha ʻoku ʻikai ke ʻi ai ha meʻ: Ko honau tefitoʻi fatongia ko e lau mo e vaeua uaea, toe ʻiloa foki ko e ma fuhu, ʻa ia ʻoku fakafalala ki he loloa ʻo e uaea. Hange ko ʻeni, ʻi he taimi ʻoku fakafehokotaki ai ha paipa galvanized ʻe tolu, ʻOku fie maʻu ʻa e BHC-G3/4-B taipeʻi ʻa e puha ʻo e ngaahi meʻa ʻoku ne fakamoʻoniʻi ʻa e founga ʻe tolu.
2. Ngaahi konga ʻi loto fale ngaahi puha: ʻOku ʻi he ngaahi puha ko ʻeni ha ngaahi kolomu ʻoku ʻikai ke ʻi ai ha meʻa ke maluʻi mo tufaki fakauaea. ʻI hono fakafehoanaki, ʻOku faʻa maha ʻa e ngaahi puha ʻi loto.
3. Fakafaʻahinga ʻo e Malú: ʻOku to ʻa e ngaahi puha ʻi he malumalu ʻo e Exe ‘tupulaki e malú‘ faʻahinga, neongo ʻoku fakafaʻahinga ʻa e ngaahi puha fale ko Exd ʻ flameproof. Naʻa mo e ngaahi fakahinohino pau tatau ʻe 6, ʻoku kehekehe honau mamafa koeʻuhi ko e ngaahi fakafaʻahinga ko ʻeni.
ʻOku fakataumuʻa ʻa e vakai fakalukufua nounou ko ʻeni ke ʻomi ha mahino ki he ngaahi konga mahuʻinga ko ʻeni ʻi he ngaahi feituʻu ʻoku fai ai e fakaʻauha, fakapapauʻi ʻoku ʻiloʻi e ngaahi fili mo e ngaahi meʻa fakaʻuhila ʻoku malu ange.