Fetching details from the dictionary...
running water
flowing water; stream
茹でた麺は流水で洗う。
Rinse the boiled noodles under running water.
谷には常に流水の音が響く。
The sound of running water always echoes in the valley.
検査員は公園の噴水の流水を定期的にチェックする。
The inspector regularly checks the running water of the park fountain.