Sagging Sewage Program Strains-- Grime adjustments can build your drain line to sag. When this occurs, the area that has sunk accumulates paper as well as waste leading to a blockage.???? ????????? ??? ????????, ???? ??? ?????????, ???? ??? ???????????????? ???????? ??????????, ???????? ???? ??? ??? ?? ?????? ????? ???? ???? ????? ? ??? ????? ??? ?