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

https://wiki-global.win/index.php/Why_Concrete_Washout_Matters:_Environmental_Compliance_Explained

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.