Sagging Sewage Program Strains-- Dirt changes can make your drain line to sag. When this occurs, the area which includes sunk accumulates paper in addition to waste bringing about a blockage., ????? ??????? ????? ?? ????? ?????????????? ???? ??? ???????? ???, ????????????? ??? ??? ??? ?? ?????????? ???? ?????????? ??? ??????? ???.??????????? ?????