Sagging Sewage Procedure Lines-- Dirt improvements can make your drain line to sag. When this happens, the area which has sunk accumulates paper along with waste resulting in a blockage.??????? ????? ????????? ?? ????? ???????, ?????????? ??? ??????????? ??????, ??????? ??? ?? ????????? ??? ??? ???????? ??????????.– ????? ??????????????? ??? ?? ?