Difference between Cesspool and Sump

Cesspool

Part of speech: noun

Definition: A place where sewage is held; a cesspit. A filthy place

Example sentence: Hollywood films have become a cesspool of formula and it's up to us to try to change it... I feel like a preacher! But it's really true. I feel personally responsible for the future of American cinema. Me personally.

Sump

Part of speech: noun

Definition: A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.The lowest part of a mine shaft into which water drains.A completely flooded cave passage, sometimes passable by diving.The crankcase or oil reservoir of an internal combustion engine.The pit at the lowest point in a circulating or drainage system (FM 55-501).An intentional depression around a drain or scupper that promotes drainage.

Part of speech: verb

Definition: Of a cave passage, to end in a sump, or to fill completely with water on occasion.