Sagging Sewage Procedure Traces-- Grime improvements can generate your drain line to sag. When this occurs, the segment which includes sunk accumulates paper in addition to squander bringing about a blockage.??????????? ????? ??? ??? ??? ?????????? ?????? ??? ???????????? ?? ????? ????? ??? ????????, ??? ????????? ??? ??? ??????? ????????? ?????? ?