Hayden Slack explains that 'The basic materials are perforated PVC pipe ($3-5 per foot), gravel ($25-45 per ton), filter fabric (about $1 per square foot) and catch basins ($25-50 each).' ...

3. Install an inlet grate ... “For maximum effectiveness, use 4-inch perforated PVC pipe,” says Lamprey. PVC lasts longer, and if you encounter a clog, it can be cleaned with a pressure ...