20 gross pool facts that some might scare you off swimming
Chlorine is also depleted by things like sweat, sunscreen, and skin or hair products.
"All the things we put on our body like lotion, shampoo, conditioner, sunscreen, etc., remove or absorb the chlorine from the water, so there's a lower concentration than there needs to be to kill all the germs," Reynolds says. That's why it's hard to keep a pool actually germ-free throughout the whole day.
