Sinks can get stopped up by many different things, especially depending on where the sink is located. When it comes to your bathroom sinks and drains, the main culprit is hair! When this hair gets trapped, water can’t pass through, making for a bad situation. Your sink could overflow, causing flooding. In the kitchen, the sink could have food particles stuck on the pipes causing the sink to clog and overflow. The pressure on these pipes can cause a catastrophe at any time.