1) Excavation to drain tile below pipe.
    2) Crack is filled with quick plug.
    3) Then a layer of tar is placed 1 foot wide along crack.
    4) 3" Drainage board is then placed over the crack top to bottom.
    5) A tee is put in drain tile with a riser used as a clean out joint.
    6) The trench is then filled to the top with crushed rock.

This method ensures that water immediately drops to drain tile below. No water pressure can push into the crack