水道水 (suidousui) Japanese meaning: tap water | KotomoraJapanese tap water is safe to drink as is.
Usage patterns
水道水を飲むto drink tap water
Many people in this area drink tap water straight from the faucet.
水道水を沸かすto boil tap water
I boiled tap water to make tea.
水道水が止まるfor the tap water to stop running (e.g. during an outage)
The tap water stopped running because of the typhoon.