Sagging Sewage System Lines-- Grime alterations can make your drain line to sag. When this happens, the area which has sunk accumulates paper as well as waste bringing about a blockage.??????????? ??? ????????? ??? ??????????? ??? ??????????? ??? ??? ????, ???????, ??????? ? ??????, ???????????? ?????????? ?????????? ??? ??????? ?? ????????? ??? ??