? ??????? ?????? ?????????? ??? ???????? ????????????? ??? ??????????? ?? ??????? ?? ??????????? ??? ????????????. ?? ????? ??? ???????????? ??? ????? ?? ?????? ????, ???? ?? ????? ??? ???????????? ????.?? ??????? ??? ??? ??????? ????????? ??? ?? ?????? ???????? ????????, ???Plant roots are An additional continual cause for sewer back again-ups and