?????????????? ??? ?? ????????? ?????? ?? ????? ??? ?????? ????? ?? ???????????? ?? ?????????? ????? ???. ????????? ?? ???????? ??? ?????? ??? ?????????? ??? ????? ?????? ?? ???????????? ?????? ????? ??? ??????.Questioning just how to manage blocked sewage program lines? A sewage technique line is very important as it aids sustain the metropolitan