I?ve recently rented the first floor of our house. I?m new to this stuff and have a tenancy issue. I?ve signed an agreement with them but there it?s not mentioned about paying the plumbing charges. The house have been rented for the past 6 months. The bathroom sinks clogged 4 times till now . Anyway I managed paying the plumber all those four times but I can?t always afford this. The tenants says that this is the issue with plumbing but I don?t think so because we were using the first floor since the past 5 years but there were no such issues. The people living here have 2 cats and a dog they use to shower them inside the bathroom. I think it would have been the cause for this frequent clogging. What shall I do ? I?ve gone through a blog ( http://www.brothersplumbing.ca/blog/unclog-drain/6-ways-unclog-drain/ ) to eliminate clogs but I don?t know whether those tips would be effective for unclogging drains containing animal hair. Please share your suggestions...