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An Explanation Of The Small Hole At The Top Of Your Sink

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An Explanation Of The Small Hole At The Top Of Your Sink

Have you ever given any thought to the hole located close to the top of your bathroom sink?

Hole In Sink: Explained

Your sink might contain one, two, or three holes, depending on how it’s designed.

They could be under the near rim, facing the mirror, or between the faucet valves, facing you.

They have two purposes: they allow air in the drain to escape and they stop an overflow when the drain stopper is engaged.

A full basin of water would drain slowly without this hole because of the resistance it creates to air escaping up the drain. A backup escape route maintains airflow and the drain line’s maximum capacity.

You may have seen that your kitchen sink lacks an overflow vent hole, yet your bathtub does.

Bathtub filling times can cause individuals to leave and get distracted. And so the safety measure.

The kitchen sink’s divider, which rises lower than the rim between the two typical basins, provides overflow safety.

Air can exit the drain line through the second basin’s drain, which also acts as the first basin’s vent.

Bacteria is another issue that keeps the kitchen sink from developing an overflow hole.

That little opening may contain bacteria that could poison you if they contaminate food or even dishes and utensils that you clean.

Bacterial growth in the sink overflow vent can occasionally cause an unpleasant smell. This is your reminder that housekeeping is overdue.

Clean the hole in your sink with a four-step process:

  • To begin, undo everything that is fastened to the sides of the tunnel, from the drain line to the overflow/vent hole. The task is made easy with a cheap pipe-cleaner-style brush.
  • Pour a few cups of boiling water into the opening, stick a funnel tip inside, and flush the tube.
  • Apply an enzymatic drain cleanser (septic-safe variants are available) to the tube and allow it to remain there overnight. Alternatively, flush it with two cups of a baking soda and vinegar solution and allow it to remain there for fifteen minutes.
  • Finish the process by giving the area one last flush with multiple cups of boiling water.

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