Shenhai e fakamoʻoni fakaʻauha
ʻOku mahuʻinga hono fakaʻaongaʻi. Ko e tohi lesoni ki hono tufaki ʻo e ngaahi meʻa fakamisini mo fakapuleʻanga (3Pulusinga hono 3) ʻi he peesi 489 Fakamahinoʻi: ʻI he ngaahi ʻatakai ʻoku ne fakafepakiʻi e efu, ʻOku tapui ʻaupito ʻa e ngaue ʻa insulated uaea pe pelesitiki conduits ki hono fola.
Ko e conduits ʻoku fokotuʻu atu ko galvanized ngaahi paipa ukamea, angamaheni ʻaki hono fakaʻaongaʻi ʻi he ngaahi meʻalele ʻoku ʻikai fuʻu malohi. Kuo pau ke pikitai ʻa e ngaahi paipa ko ʻeni ki he tuʻunga ʻo e fakamoʻoni fakaʻauha, faʻa fie maʻu ha holisi siʻisiʻi taha matolu ʻo e 2mm.