French Drain (With Drainage Fabric)

Drainage Geotextile

Aggregate drains are sometimes referred to as French drains. Washed in soils can create a real problem for these systems and they eventually clog. The introduction of a drainage fabric around the aggregate can prevent in-situ soils from being washed into and clogging the drain.

• Prevent Clogging
• Extend Drain Life
• Increase Performance

US 120NW is a nonwoven lightweight drainage fabric that will prevent soil fines from entering the drainage system, extending drain life and increasing performance.

AWD Composite Drains

A second geosynthetic option for french drains is AWD strip drains. They completely replace the traditional French drain consisting of drainage fabric, aggregate and pipe. AWD strip drains consist of two parts: a geotextile drainage fabric and a molded plastic core or "dimple board". These pre-fabricated drains have an 80% open area compared to the 1%-3% open area for 4" perforated pipe and have a flow capacity of 21 g/min/ft2.

• Replaces Fabric, Aggregate & Pipe
• Higher % Open Area
• Higher Flow Capacity
• Lowers Installation Costs
• Installs 50% Faster
• Decreases Soils Excavated
• Eliminate Hassles of Gravel

AWD Composite Drains can also lower installation costs because they install 50% faster than traditional French drains, decrease the amount of soils removed from the jobsite and eliminate the hassles associated with gravel.

Please click on the links to the right of this page for more information.