Have you ever wondered why there is a hole in your bathroom sink? That opening is what you call the sink overflow. It is a tiny hole commonly found underneath the tap, below the rim, and at the back of the sink. It serves two important functions, and this article will tell you what they are for.
Is a Sink Overflow Necessary?
A sink overflow serves two essential roles:
1. It Prevents Water From Overflowing
It is easy to close the bathroom sink drain to fill it with water like a basin. Doing this can help you in small tasks such as washing or cleaning items. Without the sink overflow, the water could spill over the sink and go straight to your bathroom floor. Some people think that sink overflows only serve as the drain when the main drain of the sink is clogged, but that is not quite accurate. The sink overflow helps prevent or delay the water from spilling over.
2. It Helps the Sink Drain Faster
The sink overflow also plays a vital role in helping the sink drain more quickly because the hole allows the air to get into the drainpipe. Furthermore, a filled basin means that the drain opening is completely blocked. Therefore, the drain would not get the air it needs to create suction. The sink overflow helps make the draining possible.
Not all sinks have this option, though. And for these other sinks, bubbles start to appear as soon as the water drains, and draining it away takes much longer.
How Do You Keep Your Sink Overflow Clean?
It is essential to keep the sink overflow clean and free of debris all the time, but doing so can be pretty tricky. The hole tends to be small and hard to assess, but there are simple ways to maintain them:
1. Use long plastic zip ties
Zip ties might be created for a different purpose, but they can be a helpful tool in keeping your sink overflow clean and free of any obstacle. Simply insert the pointy end of the zip tie and move it downward slowly. Then, move it side to side to push out any blockage that is clogging your drain. It would be best to use the longest zip tie you can find and make sure not to drop it to the drain.
2. Use a rubber hose
Instead of running water down the drain through the rubber hose, you can use this tool to fill the overflow with air. You can use a dishwasher hose about seven to eight inches long, but any sturdy hose can work. Make sure that it can fit in your sink’s opening. Here is how to do it:
- Fill up the sink with water and let it slightly overflow on the opening.
- As the excess water runs down the overflow, insert one end of the rubber hose into the overflow opening.
- On the other end, start blowing air through the hose.
- Completely drain your sink and blow some more air through the hose.
- Make sure that the air you are blowing out is going down freely. Should you feel any resistance, it is a sign that there is a blockage in there.
- Repeat the process as needed.
3. Use a Mixture Cleaner
Combine chlorine bleach and water in a 50-50 ratio. Pour the mixture down the overflow and let it stay for at least ten minutes. Flush the mixture with water after.
Conclusion
You may not see them, but overflow pipes are found all over your house. Without them, your kitchen sink and other furnishings could get worn out quickly, forcing you to spend more on a replacement. The sink overflow is connected to these pipes, and together, they work to give you a more efficient sink to use in the house. Make sure to choose a sink with overflow and keep it clean and clog-free at all times.
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