Sagging Sewage Program Strains-- Dirt improvements can develop your drain line to sag. When this occurs, the portion which has sunk accumulates paper along with squander leading to a blockage.?????????? ?? ????? ??????? ?????????? ??? ???????? ??? ??? ??????????? ?? ??? ?????? ?????????? ????????? ?????????? ?? ???? ??????? ???, ???? ??? ???? ?????