Sagging Sewage System Traces-- Grime alterations can produce your drain line to sag. When this occurs, the part which includes sunk accumulates paper and also squander leading to a blockage.?? ?????? ??? ?????????????, ???????????? ????? ??????????? ??? ??? ?? ???? ????????? ???, ???? ??? ??????? ???? ????? ????????? ?????? .??????? ??? ??? ????? ?