Better Trapping Of Sediment & Soluble Pollutants Easy Removal Of Accumulated Solids. No Trenching Required Greater Surface Area Contact. Customized To Remove Targeted Pollutants. Easily Increase Design Height By Stacking Customize Size And Shape To Fit Awkward Areas-Such As Low Valleys Or Steep Slopes. Applications: Concrete Truck Washing Station. Stream Pump-Arounds. Emergency Overflow. Dredging Surrey Filtration. Manure Lagoon Slurry Filtration.