hǎ-tsúi下水

sewage

sewage; water drainage, especially after waterlogging; to be launched; to enter the water; to soak in water to shrink cloth or fabric before use

English Wiktionary, “下水” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E4%B8%8B%E6%B0%B4 · confidence: Medium (Wiktionary, Hokkien)