沸わかし湯ゆ

noun

heated bathwater; hot water for bathing

Often refers to cold mineral spring water that has been heated to a suitable bathing temperature, as opposed to naturally hot spring water.

• この旅りょ館かんの沸わかし湯ゆは、冷れい鉱こう泉せんを温あたためたものだ。

  The heated bathwater at this inn is made by warming cold mineral spring water.

• 沸わかし湯ゆと天てん然ねんの温おん泉せんでは、肌はだ触ざわりが違ちがう。

  Heated bathwater feels different on the skin compared to natural hot spring water.