Long-lasting filter fabrics for subsurface drains.

Most modern trench drains use a fabric barrier to wrap the rock or gravel layer surrounding the drainpipe buried in the ground. PAK has found a filter fabric that’s tough, durable and can last almost indefinitely when buried underground. This polypropylene fabric is woven with a slightly open weave, which allows excellent seepage of drain water or sewage into the drain field. The fabric is durable enough to withstand abrasion from coarse sand and crushed stone.