Sagging Sewage Program Strains-- Grime alterations can develop your drain line to sag. When this happens, the area which has sunk accumulates paper along with squander resulting in a blockage.????? ?? ???????? ???????? ??? ????? ????????? ? ????? ??????????.? ???????? ??????????, ?????????? ???????? ????? ??? ???????????? ?????????? ??? ???????????