???? ?? ???????? ??? ???????????? ????????, ????? ????? ????????????? ??? ?? ??????? ?? ??????? ??? ????? ??? ??? ??? ??????? ?????????.?????????? ???????? ???????? ???????????? ??????????? ??????? ????????? ??? ?????????? ??? ??????? ??????????? ?????????? ????? ???????? ??????? (The drinking water levels from the commode fluctuate once the drains