WTL offers a broad range of quality geonet and geocomposite drainage liners designed to complement or replace sand, stone and gravel. Our geonet products are used for: erosion control, foundation wall drainage, landfill leachate collection in landfill liners, leak detection, caps and closures, methane gas collection, pond leak detection, roadway and pavement drainage and other subsurface drainage system applications. If you require geocomposite drainage filtration to keep silt and soil particles from clogging the flow or to increase the friction characteristics, WTL offers geocomposites consisting of a geonet heat-bonded with a nonwoven needle-punched geotextile. Our geocomposites are an optimal solution for landfill liner applications.