Where do you live. if you live in Toronto, You should call City of Toronto, It will send guys to check. maybe the sewer pipe underground is broke, it cause the this problem. Please confirm and check first.
-xiaoyao888(quite);
2009-8-4(#5463536@0)
I'd like to say lz lives at north of Steels and the house is less than 15 years old.
-dcw(地产王);
2009-8-4(#5463670@0)
I'm afraid it is a wrong guess.
-dayafterday(dream);
2009-8-5(#5465081@0)