forebay
/ˈfɔrˌbeɪ/
noun
- A pool or reservoir that holds water before it flows into a mill, power plant, or other system.
- Engineers inspected the forebay for debris that could clog the intake pipes.
- The forebay collects water from the river before it enters the turbine.
- The old mill's forebay is now a popular spot for birdwatching.