A blocked sink can be a real nuisance. It can cause water to back up, making it difficult to use the sink. It can also cause odors and even health problems if left untreated. But what causes a sink blockage?

Sink blockages can happen for a variety of reasons. One of the most common causes is the buildup of food particles and grease in the plug hole. Over time, this buildup can cause a blockage, making it difficult for water to drain away.

Other common causes of sink blockages include hair, soap scum, and foreign objects being dropped down the plughole. These can all cause a blockage, preventing water from draining away as it should.