Tree roots are the biggest culprit here. Eatons Neck has beautiful mature trees, but their roots naturally seek out water sources. Even tiny cracks in your sewer line become entry points, and once roots get in, they grow until they completely block the pipe.
Kitchen grease is another major problem. It goes down liquid but hardens in your pipes, catching everything else that comes along. Over time, you get a solid mass that completely stops water flow.
In bathrooms, it’s usually hair combined with soap scum that creates a buildup over months or years. The older your home’s plumbing, the more likely you are to have these gradual blockages.