When you’ve got a high water table adjacent to your home, the elevated groundwater can seep into your foundation, planters, retaining walls, and basement, causing costly water damage. The EZflow® Gravel-Free French Drain System helps lower subsurface groundwater elevations by diverting water to a lower point. A convenient alternative to traditional gravel-filled French Drain systems, the EZflow French Drain comes as a preassembled bundle containing lightweight Poly-Rock™ made of expanded polystyrene (EPS) encased in a black geotextile mesh sleeve for easy handling and installation.