I've been moving into a new place and noticed all the bathroom sinks have overflow holes, which I really dislike because they collect grime and can even cause soap to bubble out. I don't see the need for them, especially since I don't have kids. Rather than replacing the sinks, I'm planning to just seal off the overflow holes and install non-overflow drains. I'm wondering if there are any risks or downsides to doing this that I should be aware of.
2 Answers
You might run into slow drainage issues since the overflow is designed to help vent air as water drains. Sealing it off could create problems if there's a lot of water flow. I’ve had sinks without overflow that didn’t drain slower, but those were designed that way to begin with. Just a heads up!
Honestly, keeping your sink clean can prevent the gunk issue altogether. If you don’t have kids messing around, it shouldn't be a problem! But if you're really into sealing off those holes, just keep in mind that it'll change the airflow for drainage. So just make sure to maintain it to avoid slow drains.
Thanks for the info! So are you saying this would only be an issue for sinks designed with overflow functionality? I've had other sinks that didn't have this, and they drained fine.