Eli5 when it’s windy outside why does the water in toilets swish a little bit?

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Eli5 when it’s windy outside why does the water in toilets swish a little bit?

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72 Answers

Anonymous 0 Comments

OMG I just had THIS EXACT thought yesterday and wanted to post here. I’ve never said this cliche but “are you me?” haha

Anonymous 0 Comments

Sometimes it’s because the building is swaying slightly too. Not just an air pressure thing.

Anonymous 0 Comments

Sometimes it’s because the building is swaying slightly too. Not just an air pressure thing.

Anonymous 0 Comments

Sometimes it’s because the building is swaying slightly too. Not just an air pressure thing.

Anonymous 0 Comments

About 16 years ago we moved into a house on the Delaware River waterfront. I had noticed that the water in the toilets would occasionally be at a lower level than after the toilets had refilled, and I was concerned that there was a leak. Then, one day when it was especially windy outside, I noticed movement in the toilet water, and I remembered the Bernoulli principle, reasoning that the wind blowing across the vent pipe on the roof created a vacuum, which would suck the water out of the toilet.

Mystery solved.

Anonymous 0 Comments

About 16 years ago we moved into a house on the Delaware River waterfront. I had noticed that the water in the toilets would occasionally be at a lower level than after the toilets had refilled, and I was concerned that there was a leak. Then, one day when it was especially windy outside, I noticed movement in the toilet water, and I remembered the Bernoulli principle, reasoning that the wind blowing across the vent pipe on the roof created a vacuum, which would suck the water out of the toilet.

Mystery solved.

Anonymous 0 Comments

About 16 years ago we moved into a house on the Delaware River waterfront. I had noticed that the water in the toilets would occasionally be at a lower level than after the toilets had refilled, and I was concerned that there was a leak. Then, one day when it was especially windy outside, I noticed movement in the toilet water, and I remembered the Bernoulli principle, reasoning that the wind blowing across the vent pipe on the roof created a vacuum, which would suck the water out of the toilet.

Mystery solved.

Anonymous 0 Comments

They do? I haven’t noticed.

Anonymous 0 Comments

They do? I haven’t noticed.

Anonymous 0 Comments

They do? I haven’t noticed.