循じゅん環かん風ぶ呂ろ

noun

recirculating hot spring bath; closed-loop bath

A bath where water is filtered, heated, and reused, as opposed to a 掛け流し (free-flowing) bath. Common in modern onsen facilities.

See also: 掛け流し

• この温おん泉せんは循じゅん環かん風呂ぶろなので、いつも清せい潔けつです。

  This hot spring is a recirculating bath, so it's always clean.

• 循じゅん環かん風呂ぶろと掛かけ流ながしの違ちがいがわかりますか。

  Do you know the difference between a recirculating bath and a free-flowing one?