Concrete washout captures rinse water and slurry from chutes, pumps, and tools

https://wool-wiki.win/index.php/Top_Concrete_Washout_Mistakes_Contractors_Must_Avoid

Concrete washout captures rinse water and slurry from chutes, pumps, and tools, preventing high-pH runoff from polluting soils, drains, and waterways on and around active construction sites.