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Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

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21–30 of 353 posts

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#21
This has been well-known by swimmers for a long time: chlorine itself is pretty much fine for you. It's the chemical reaction of chlorine with waste products, including human waste, that produces toxic byproducts and the concomitant "pool smell."

If you swim in a well-maintained pool (e.g. one of my university's competition swimming pools), there's no "pool smell."

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#22

Why do pools still use chlorine? Is it just because it's really cheap? I've seen non-chlorine pool treatments advertised in the past but haven't been to a single pool in 20+ years that wasn't chlorinated. http://www.baquacil.com/ EDIT: Also, ewww.

I was curious, did some googling, found a quora comment characterizing Baquacil as less effective, more expensive and not as scalable: https://www.quora.com/Why-do-they-put-chlorine-in-swimming-p...

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#23
If my memory serves me well, it is not chlorine, but the product from hypochloric acid[1] and urea/urea-derivatives that that make eyes hurt. Although, I don't know if they use Cl2 as reagent here.

[1] Hypochloric acid is generated in a disproportionation reaction: Cl2 + H2o --> HCl + HOCl

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#24

This has been well-known by swimmers for a long time: chlorine itself is pretty much fine for you. It's the chemical reaction of chlorine with waste products, including human waste, that produces toxic byproducts and the concomitant "pool smell." If you swim in a well-maintained pool (e.g. one of my university's competition swimming pools), there's no "pool smell."

The scent of bleach and the scent of "pool smell" are almost exactly the same to me.

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#25
post #9

"Approximately 58 per cent of Canadians admitted to peeing in the pool at least once in a recent survey of 9,500 people conducted by Travelocity." Never looking a Canadians the same ever again.

To paraphrase a HaHaOnlySerious joke about diving:

"There are two kinds of people in the world. Those who have peed in a pool. And those who lie about it."

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#27

I've always wanted a product that you could add to the swimming pool water that reacts to human urine by coloring the water immediately surrounding the pee-er. Say a neon orange or red. Over time, the colored water gets diluted and disappears. Maybe pee-shaming is what's required to stop people from doing it.

I may be missing the joke here, but for many years swimming pools merely _claimed_ they had this, to discourage people.

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#28

I've always wanted a product that you could add to the swimming pool water that reacts to human urine by coloring the water immediately surrounding the pee-er. Say a neon orange or red. Over time, the colored water gets diluted and disappears. Maybe pee-shaming is what's required to stop people from doing it.

My dad once told me that this was done when he was young (so I'd guess around late 60's / early 70's). He told me it wasn't received well by the public, as swimmers (especially young children and older people) can loose some urine by accident. The dye in the water would damage their confidence.

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#29
post #11

Earlier quoted context omitted.

Salt = NaCl.

Chlorine = Cl2. https://en.m.wikipedia.org/wiki/Chemical_bond#Covalent_bond

Chlorine Gas = Cl2, which is generated by electrolysis of NaCl in a saltwater pool setup.

Re: Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015)

#30
As a longtime swimmer and water polo player, my eyes have been absolutely wrecked by harsh pools many, many times.

However, I don’t think it’s pee. First off, every swimmer pees in the pool.

I have been a part of tens of thousands of man-hours in the pool and seen people get out to pee maybe three times.

I have been in the first games of the day at water polo tournaments and have seen them chlorine shock the water followed by everyone’s eyes getting decimated. To me, the devil is unbalanced chlorine coupled with the thick, thick film of sunscreen that develops in the water after a scorching day with hundreds of people jumping in and out.

You get desperate when your eyes get that destroyed. The classic trick is to fill a pair of goggles with milk and just put ‘em on for a few minutes.

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