I have been dealing with renters that seem to have alot of toilet overflow problem. We have exhausted what is being put down the pipes, but to no avail, nothing unusual. They are excellent tenants and I believe they try to keep things up to par. Rooter Man visited and mentioned that the toilet may be the cause. This is hard to believe because the whole bathroom including the toilet is only a 1 1/2 old. I asked some plumbers at home depot and they seem to say that a toilet is a toilet. Any feedback is appreciated. Thanks for your time.