(click on a thumbnail to view larger images)
A typical interior basement footing drain system involves cutting a portion of the basement floor slab, excavating a shallow trench around the inside of your foundation below the footing elevation, and sloping it to the final outlet. Perforated pipe is installed in the trench and surrounded with drain rock. The piping is connected to a catch basin (drain) installed in the laundry/utility room, or close to the main sewer. Depending upon the topography, the collected water is drained out by gravity, or is mechanically pumped to the appropriate outlet source like a storm sewer system.
To finish the solution, the drain rock is covered with filter fabric or a vapor barrier, and the concrete slab is restored.