There could be a number of reasons why your bathroom sink is draining slowly. One possibility is that there is a clog in the drainpipe. This can be caused by hair, soap scum, or other debris that accumulates over time. Another potential reason is that the sink trap is full of water. The sink trap is the U-shaped piece of pipe under the sink that catches debris and prevents it from going down the drain. If this part of the plumbing becomes clogged, water will not be able to flow freely and will drain slowly. If you’re experiencing this problem, call one of our experts at Pipe Pros Utah for assistance!