People Can't Agree on Whether You Should Shower Before Getting in a Pool — The Answer Is Gross

That pre-swim rinse everyone skips is doing way more than you think.

It's the sign every pool has and almost everyone ignores: 'Please shower before entering.' A viral debate over whether the rule actually matters has ended with a lot of people quietly changing their habits.

Here's the gross part. That sharp 'chlorine smell' at busy pools isn't chlorine doing its job — it's largely chloramines, compounds formed when chlorine reacts with sweat, body oils, sunscreen, and worse. A strong pool smell often means the water is working overtime, not that it's extra clean.

A quick rinse before swimming washes off the bulk of what's on your skin, which means the chlorine stays free to fight actual germs instead of your sunscreen layer. It also helps your hair and skin absorb less pool water.

So yes: the 30-second shower is real, it helps everyone, and the strong-smelling pool is the one to side-eye. As one commenter summarized: 'The pool that smells like nothing is the clean one. I need to sit down.'