Sagging Sewage Technique Strains-- Dirt adjustments can make your drain line to sag. When this happens, the segment which has sunk accumulates paper and squander resulting in a blockage.??? ????? ???????????? ??????????? ?????? ?? ??????????? ??? ????? ??????? ?? ??? ???? ??? ????????? ??? ?????? ?? ??????????.?? ???? ???? ???, ?? ??????? ?????????