In this case, you may think you need a plumber or at least to buy some drain clearing product that will sit in the drain and erode your pipe as much as it will help your slow draining sink.

Before you do either of those things though, try slowly pouring boiling hot water down the drain, starting when there is no water in it. It probably seems too good to be true as a fix for what may feel like a scary problem, but more often than not, it's all you need.

Sinks often start to drain more slowly over time because of build up in the drain pipes. While it's possible that there is a more significant blockage somewhere, if you're only having trouble with one sink, that's very unlikely. In this case, the power of slowly pouring a gallon or two of boiling water down the drain is mind-blowing.