Take a closer look at your sink. See that small hole just below the faucet, near the back wall of the basin? It’s called an overflow hole, and while it may look insignificant, it’s actually a key safety feature built into most sinks.
Let’s explore why that little hole matters more than you think.
The overflow hole is:
Its job? To prevent your sink from overflowing if the main drain is clogged or if someone accidentally leaves the tap running.
If water rises too high in the basin, it starts to flow into the overflow hole. From there, it bypasses the clogged drain and travels directly to the plumbing, helping to:
Not all sinks (especially modern vessel-style or minimalist designs) include an overflow. If yours doesn’t, be extra cautious:
That overflow hole only works if it’s not blocked by mineral buildup, soap scum, or gunk. Take a minute to check it — a clogged overflow is like having no overflow at all.
Next time you wash your hands, remember: that little hole could be the silent hero protecting your home from a flood. Would you like me to label the image and turn it into an infographic for easy sharing or printing?
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