Sagging Sewage Procedure Traces-- Dust improvements can develop your drain line to sag. When this happens, the portion that has sunk accumulates paper and also squander bringing about a blockage.???? ????????? ??? ????????, ???? ??? ?????????, ???? ??? ???????????????? ???????? ??????????, ???????? ???? ??? ??? ?? ?????? ????? ???? ???? ????? ? ???