The small hole is a common area right at the sink. This small hole is located close to the faucet. Many people will not pay much attention to this hole or may think it is one of the "extra" designs, with no effect at all.

In the design of the sink, the small hole is located at a height of about 1/3 compared to the upper basin wall. This small hole is connected to the water pipe below.

This is one of the advantages of the sink. Because according to experts, you may forget to turn off the faucet during use.

Having this small hole will help you dispel the worry of flooding in the house. When flooded, the drain pipe below is relatively small and may not be able to drain in time. This hole is carefully calculated to help drain water effectively. Thanks to that, the water in the sink will drain faster.

This hole has many uses but also causes many inconveniences for users. Because it is located in a rather inconvenient position, it is easy for bacteria and mold to stick from the pipe wall to the top, causing an unpleasant odor.

Therefore, when you feel an unpleasant odor in the bathroom, especially from this small hole. To overcome the above situation, you can use vinegar mixed with baking soda and put it in the hole of the sink.

The biochemical reaction will remove dirt in the pipe for 5-10 minutes. Finally, you fill the sink with warm water to clean it one last time. Thanks to this method, you will be completely assured that the bathroom is always clean and fresh.