According to TRI Environmental, Siltron® demonstrates the highest sediment removal rate while at the same time also demonstrating the highest seepage rateever seen in a fencing geotextile (97.8% and 1.51 gpm/ft2 respectively via ASTM 5141 test). Designed to resist blinding and keep seeping. For a dynamic filter-ponder, blinding is caused by the buildup of sediment during the transition from filter to ponder.
Although ponding exposes upper fresh high-flow surface, we still want the sediment covered lower area to pass water, but how? Two ways, first, a unique course textured 8 oz. non-woven pre-filter is specifically designed to resist blinding. Second, Siltron® exhibits a rubbery “squishiness” to the overall composite. Under hydraulic pressure Siltron® compresses but de-compresses as pressure alleviates. When a blinding slurry builds up under hydraulic pressure, as the pressure alleviates, the compressed textile snaps back (about .5mm). This snapback breaks open the slurry and seepage continues.