Seafarer's Service Regulations Article 39

The deputy boatswain and ship’s carpenter shall comply with the orders of the chief mate, deck officer responsible for the navigational watch, or boatswain in their duties with regard to the maintenance of anchor gear, deck equipment, materials, tools, and lamps, as well as checking the closure of the cargo tank vent and inspection of the water tank. They shall report the daily measured water conditions to the chief mate.
中文原文 船員服務規則第39條
副水手長、木匠秉承大副或當值航行員或水手長之命,負責錨機及艙面機具保養維護,物料、工具、燈具之保管維護,貨艙通風口之封啟及水櫃之查驗。
每日並應將測水情形報告大副。

English translation for reference only; the Chinese text prevails. Not legal advice.