wui4 seoi2回水

Jyutpingwui4 seoi2

Yalewùih séui

名詞Rare

Definition

Return pipe; a pipe in a water circulation system that sends used water back to the starting point.

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How it's used

Primarily used in engineering, plumbing, and HVAC contexts to describe the pipe that carries fluid back to the source or boiler. While it literally translates to returning water, it is a technical term rather than a colloquial way to describe general water pipes. In casual speech, people might simply refer to it as 喉 or 水喉 depending on the specific appliance.

Measure word

tiu4條tìuh

Examples

go3個wui4回seoi2水hau4喉sak1塞zo2咗，gaau2搞dou3到di1啲seoi2水lau4流m4唔faan1返heoi3去。

The return pipe is clogged, so the water cannot flow back.

nei5你gim2檢caa4查haa6下go3個wui4回seoi2水hai6系tung2統jau5有mou5冇lau6漏seoi2水aa3呀？

Can you check if the return pipe system has any leaks?

Common phrases

wui4回seoi2水hai6系tung2統

return water system

wui4回seoi2水hau4喉

return pipe

Common mistake

Do not confuse this with the slang term 回水, which is commonly used in Hong Kong to mean getting a refund or money back. In a casual conversation, if you mention 回水, people will almost certainly think you are talking about money rather than plumbing.