J-DRain SWD is a composite turf drainage system consisting of a 3-dimensional, high flow, drainage core and a non-woven, needle-punched filter fabric.  The filter fabric is wrapped and bonded to the drainage core, preventing intrusion of the filter fabric into the flow channels during the backfilling process.  Soil particles are held back by the filter fabric allowing water to pass through to the drainage core allowing water to be collected and conveyed to the discharge point.  Available in 12, 18, 24, & 36 inch widths.

BACKFILL: The normal backfill material is the excavated soil.  Prior to use, it is highly recommended that the backfill material be evaluated by a qualified geotechnical soils laboratory.