Contractors can reduce waste by allowing solids to settle, decanting clear water for reuse

https://kilo-wiki.win/index.php/Concrete_Washout_Containment_Options_Compared:_Bags,_Bins,_and_Basins

Contractors can reduce waste by allowing solids to settle, decanting clear water for reuse, and recycling cured concrete debris as aggregate, cutting disposal costs and conserving natural resources.