Sagging Sewage Process Traces-- Grime modifications can make your drain line to sag. When this happens, the portion that has sunk accumulates paper together with squander bringing about a blockage.???? ????????? ??? ????????, ???? ??? ?????????, ???? ??? ???????????????? ???????? ??????????, ???????? ???? ??? ??? ?? ?????? ????? ???? ???? ????? ? ?