Sagging Sewage Procedure Lines-- Grime modifications can create your drain line to sag. When this happens, the portion that has sunk accumulates paper as well as waste leading to a blockage.????????? ?? ????? ??? ???????? ??? ??? ?????????? ?? ?????? ??? ????????? ??? ??????? ??? ?????? ???????? ????????.??????????? ????? ???? ??????? ??? ??? ?????