Sagging Sewage Procedure Traces-- Dirt alterations can create your drain line to sag. When this occurs, the part that has sunk accumulates paper together with waste bringing about a blockage.?? ?????? ??? ?????????????, ???????????? ????? ??????????? ??? ??? ?? ???? ????????? ???, ???? ??? ??????? ???? ????? ????????? ?????? .???? ? ?????????? ???