Has anyone had much experience using filter fabric weed control fabric in a french drain before filling with drain pipe and stone. Won’t this just eventually clog .Keep your ba.t dry with an interior perimeter ba.t drainage system from Ba.t Systems. Patented Award Winning. Get your cost estimate today!.LIVE HELP! Consulting. We can answer any question and help save you time and money with your drainage project..How to Make a Ba.t French Drain. A French drain removes water from a ba.t by collecting moisture in a shallow trench, pulling it into a perforated pipe, and .
To install an interior French drain, a waterproofing contractor cuts a channel into your ba.t slab around its perimeter. The contractor excavates the ground below the channel, installs perforated drain pipe and a sump pump well, and fills the trench with drainage gravel..