Sagging Sewage Method Strains-- Dirt modifications can make your drain line to sag. When this occurs, the section which has sunk accumulates paper and also squander resulting in a blockage.???? ????????? ??? ????????, ???? ??? ?????????, ???? ??? ???????????????? ???????? ??????????, ???????? ???? ??? ??? ?? ?????? ????? ???? ???? ????? ? ??? ?????