Sagging Sewage Procedure Traces-- Grime variations can generate your drain line to sag. When this occurs, the part that has sunk accumulates paper along with waste leading to a blockage.?????????? ???????? ???????? ???????????? ????????????????????? ????? ???? ??????? ??? ??? ????? ???????? ??? ??????????? ???? ???????????? ??? ?????, ???? ?? ?????