Storm drains on or around construction sites are susceptible to large quantities of dirt and sand. In those circumstances, a higher capacity catch basin insert may be the better solution. While it wont capture hydrocarbons like many of the other ultra-drain guards, the reusable model is capable of containing up to five hundred (500) pounds of silt, soil, and dirt. So you can spend less time emptying out your catch basin inserts and more time working that construction.