Sagging Sewage Program Strains-- Grime alterations can create your drain line to sag. When this occurs, the portion which has sunk accumulates paper in addition to waste leading to a blockage.??????? ????? ????????? ?? ????? ???????, ?????????? ??? ??????????? ??????, ??????? ??? ?? ????????? ??? ??? ???????? ??????????.???? ?? ???????? ??? ???????