answers from Chicago on. Very tiny bugs coming up the drain that hop a little are probably springtales...I goggled tiny little bugs that hop when I first encountered them and that's what came up.
Detention basin. A detention basin or retarding basin is an excavated area installed on, or adjacent to, tributaries of rivers, streams, lakes or bays to protect against flooding and, in some cases, downstream erosion by storing water for a limited period of time.
As nouns the difference between detention and demurrage is that detention is (uncountable) the act of detaining or the state of being detained while demurrage is the detention of a ship or other freight vehicle, during delayed loading or unloading.