Sump

Sump: A pit or tank that catches liquid runoff for drainage or disposal.
Superchlorination: Chlorination with doses that are deliberately selected to produce water free of combined residuals so large as to require dechlorination.

sump A pit or tank that catches liquid runoff for drainage or disposal.
sump pump A mechanical device for removing water or wastewater from a sump or wet well. It may be energized by air, water, steam, or electric motors.

Sump: A pit or depression where liquids drain, collect, or are stored.
Surface Water: The portion of water which appears on the land surface; oceans, lakes, rivers, etc.

water from a sump or wet well.
surface runoff. Precipitation, snow melt, or irrigation in
excess of what can infiltrate the soil surface and be stored in ...

surface pump. A mechanism for removing water or wastewater from a sump or wet well.

See also: Environmental, Waste, Surface water, Sediment, Solution