Most bathroom sinks feature a small hole near the faucet, which often sparks curiosity. Far from being a design afterthought, this hole plays a crucial role in the sink’s overall functionality. Typically located about one-third of the way up the basin, it connects to the drainage pipe below and serves as an overflow mechanism.

When the faucet is accidentally left on, the water level in the sink can rise quickly. If the water reaches two-thirds of the basin, the overflow hole allows excess water to drain away, preventing spills and flooding. This clever design protects your bathroom from potential water damage, making it an essential safety feature.

However, while beneficial, the overflow hole can collect soap scum, organic matter, and bacteria over time, creating unpleasant odors. To address this, a simple cleaning solution of vinegar and baking soda can work wonders. By pouring this mixture into the overflow hole and allowing it to sit for a few minutes, you can dissolve the buildup and flush the pipes with warm water to restore freshness.

In conclusion, the small hole near your bathroom sink is a vital safeguard against overflow. Regular maintenance ensures a clean, fresh-smelling bathroom, enhancing both its function and hygiene.