ALL-PURPOSE FILTER Silt and debris is trapped between the berms and does not wash off in the next rainstorm. In heavy rain, the flood flap opens to minimize flooding. Not a problem like having a plugged filter under the grate. Berms contain filter sand and activated charcoal. Heavy duty ties hold filter onto grate. Can withstand traffic. This filter works for both the catch basin and curb inlet.
FILTER SLEEVES-GEOTEXTILE FABRIC OR BURLAP For maximum flow to minimize potential flooding, fill the filter sleeve with gravel and some sand. For increased sediment retention, fill with just sand. Adjust the quantity of sand to establish overflow. Join sleeves together with ties for longer inlets. Filter Sleeves are 3 inch diameter x 36 inches long. Easily pulled out to allow more flow in heavy rainfall.
QUICK AND CHEAP Lay the filter over the grate and the sand bags on the sides. No lifting of grate. Sand bags alone do not stop the silt. The filter fabric has a flood flap that opens in heavy rains to minimize flooding. Can be cleaned off and reused. Filter #QCF-36" x 30". Packaged 4 filters and 8 sand bags/carton.
