Sagging Sewage Procedure Strains-- Filth alterations can build your drain line to sag. When this happens, the area that has sunk accumulates paper in addition to squander bringing about a blockage., ????? ??????? ????? ?? ????? ?????????????? ???? ??? ???????? ???, ????????????? ??? ??? ??? ?? ?????????? ???? ?????????? ??? ??????? ???.? ??????? ??