Sagging Sewage Procedure Traces-- Dirt alterations can generate your drain line to sag. When this happens, the part which includes sunk accumulates paper together with squander leading to a blockage.????????????? ???? ??? ???????? ??? ?????????? ???????????? ??? ???????? ??? ?? ????? ????? ??? ??? ??? ?????????? ????.???? ?? ???????? ??? ??????????