- Feb 5, 2007
My sink is spewing up food bits. Seems to be from garbage disposal. I live in a in-law, landlord living upstairs. He asks wife to turn on the garbage disposal upstairs, and we can hear bubbling in the sink downstairs. Seems like the plumbing is connected and whatever they're disposing of is leaking up from the sink but I'm not sure about that. If that's the case, what could be causing it? Badly routed pipes? If so, where would we check for the problem. Landlord keeps insisting that it's a problem with the main pipe because they had an issue before apparently where there was a clog at the main sewer pipe. Any ideas ,suggestions? Thanks.