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

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211–220 of 353 posts

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

#211
post #54

So how much water do you need before it's socially acceptable? I pee in the lake. What about a large pond or a really huge pool in a water park?

I've always been told not to urinate or defecate within 100 feet of water sources in the backcountry because if everyone does it it builds up and then the water is unsafe to drink even when filtered. The 6 micron filters used to filter giardia from the water will not filter viruses, which are present in your feces. Please stop doing this.

Do you think all the animals that use these water sources follow the same rules?

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

#212
post #130

Earlier quoted context omitted.

Where I live, plenty more people are infected from bacteria in goose poop in lakes than from human waste in swimming pools.

That’s why it’s never such a good idea to swim in a lake.

At the very least, you shouldn’t stick your head in the water, and swimming in shallower areas exposes you more strongly to contaminants than in deep areas.

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

#213
post #175
post #60

Earlier quoted context omitted.

strangemonad elsewhere here posted a link to a video evaluating the question of how much pee there is in pools, using the excretion of an artificial sweetener - which is only in urine and not, like urea, also in sweat - as the indicator. The presenter is also dubious about the origin of the smell, and thinks that it comes from the chlorine, not the trichloramine product of chlorine interacting with urea. So he tests…

is it possible that this is simply sweat instead of actual pee? serious question - I thought sweat is mostly comprised of the same excretion. just surprised 'peeing in the pool' is so normal.

The video covers that question.

The description of the details start at https://youtu.be/S32y9aYEzzo?t=88 . The "show more" for the video has a link to the researcher's paper at Dropbox. You can also read the paper at https://pubs.acs.org/doi/full/10.1021/acs.estlett.7b00043 .

The relevant text from in the ACS link "ACE, used in prepackaged foods,(18, 29, 30) is not metabolized by humans; it is completely absorbed and excreted exclusively in the urine,(29, 31)"

[29] Voltz, M.; Christ, O.; Eckert, H. G.; Herok, J.; Kellner, H.-M.; Rupp, W. Kinetics and biotransformation of acesulfame K. In Acesulfame-K; Mayer, D. G.; Kemper, F. H., Eds.; Marcel Dekker: New York, 1991; pp 7– 26.

[31] Renwick, A. G. The metabolism of intense sweeteners Xenobiotica 1986, 16, 1057– 71 DOI: 10.3109/00498258609038983

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

#214

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 fo…

> First off, every swimmer pees in the pool Straight up lie. I've swum for two decades and never pissed in a pool. Losing 30-60secs from a set to go take a piss is nothing. In Australia at least, pissing in the pool is considered repulsive. I don't doubt that some people piss in the pool, but I've never been in a squad and felt a "warm patch". If that did happen, others would notice and the person would be socially o…

I think it is possible for that culture to exist on teams if it’s instilled by the coach. I have been on teams with more disciplined, formal coaches and people certainly weren’t as open about it. It would probably be frowned upon if brought up.

But I’ve also been on teams with more free-wheeling coaches and that attitude—ahem—trickled down to the rest of the team. And people would openly talk about it and just straight up do it.

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

#215
post #86

Earlier quoted context omitted.

I would never swim in a pool like this. Every pool I've been to required toddlers to wear special swim diapers to prevent exactly this scenario. There are some really nasty diseases that can spread through human waste, and I would not want to come in contact with them.

Parent of two kids that have used swim diapers. I would be very surprised if those diapers were even 10% effective. Out of the pool they're basically 0% effective. And yes, I've read the instructions, and spoken to the folks who run the pool. Mostly I think they're just there to keep the poop in long enough to get the kid out of the pool.

That is exactly what the swim diapers are for!

Are you suggesting that perhaps some people think it is all right to leave their kid in the pool with a swim diaper full of excrement?

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

#216

Earlier quoted context omitted.

I'm constantly shocked and disgusted that people actually pee in pools and that it's not some joke someone made up somewhere.

I mean, what about all the other body fluids/debris that are in pools? Saliva, sweat, earwax, belly button lint, bird shit, insects, band-aids, small animal carcasses that get trapped in the filters but are removed before the pool opens? There's no avoiding other peoples/animals grossness, frankly whether your in a pool or just out and about. Urine may be gross, but it's sterile, and at least for me, there are grosse…

"Gross" doesn't necessarily mean unhealthy.

I swim in the San Francisco Bay 3 times a week, 25 minutes at a time, no goggles, just a cap and a bathing suit. I've swum near gross things like dead seagulls & dead seals, and I'm sure a lot of gross stuff drains into the Bay, but as long as the sewage treatment plant doesn't overflow I'm not worried.

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

#217
post #51

Earlier quoted context omitted.

Gosh this is not gonna go well with the public. I know several kids who just can't hold pee in the pool. They'll just let it out. Also its not like the toilets are right there. You often have to get out of the pool, walk like 100 yards or down a flight of stairs. It's a PITA. Even Michael Phelps once said in an interview that very rarely competitive swimmers get out of the pool to pee.

I'm constantly shocked and disgusted that people actually pee in pools and that it's not some joke someone made up somewhere.

Just wait until you find out what's in the ocean.

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

#218

Earlier quoted context omitted.

I've always been told not to urinate or defecate within 100 feet of water sources in the backcountry because if everyone does it it builds up and then the water is unsafe to drink even when filtered. The 6 micron filters used to filter giardia from the water will not filter viruses, which are present in your feces. Please stop doing this.

Do you think all the animals that use these water sources follow the same rules?

No, and they don't know how to read a sign either so I think they get a pass. Humans should be able to exercise a little restraint...

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

#219

Earlier quoted context omitted.

I mean, what about all the other body fluids/debris that are in pools? Saliva, sweat, earwax, belly button lint, bird shit, insects, band-aids, small animal carcasses that get trapped in the filters but are removed before the pool opens? There's no avoiding other peoples/animals grossness, frankly whether your in a pool or just out and about. Urine may be gross, but it's sterile, and at least for me, there are grosse…

Your comment appears to suggest you would find it not unpleasant to swim in a pool entirely filled with urine. Or do you acknowledge the fact that a lower concentration of bodily fluids in a swimming pool is more attractive as a swimmer?

I'm saying that singling out urine as the thing to be grossed out about in a pool, while understandable in a vacuum, is in reality one of the least problematic things in a pool, or in your daily environment in general.

So you shouldn't let the thought of potential urine in a pool stop you from enjoying pools, because if that's your threshold, you're going to have to drastically modify your daily habits to avoid things that are more dangerous/gross you encounter during every day tasks.

Everyone has their "this grosses me out" quirks. I just find it beneficial to do a reality check on them, to make sure that there's actually a reason to be grossed out by it, instead of letting an unfounded fear affect my decision making. And the reason I find this important is because I have plenty of those quirks myself.

>Your comment appears to suggest you would find it not unpleasant to swim in a pool entirely filled with urine.

I really hope someday I don't have to explicitly say things like "Just because I'm capable of swimming in a pool that might have some urine in it, doesn't mean I'm OK with swimming in a pool comprised solely of urine."

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

#220

Earlier quoted context omitted.

I mean, what about all the other body fluids/debris that are in pools? Saliva, sweat, earwax, belly button lint, bird shit, insects, band-aids, small animal carcasses that get trapped in the filters but are removed before the pool opens? There's no avoiding other peoples/animals grossness, frankly whether your in a pool or just out and about. Urine may be gross, but it's sterile, and at least for me, there are grosse…

"Gross" doesn't necessarily mean unhealthy. I swim in the San Francisco Bay 3 times a week, 25 minutes at a time, no goggles, just a cap and a bathing suit. I've swum near gross things like dead seagulls & dead seals, and I'm sure a lot of gross stuff drains into the Bay, but as long as the sewage treatment plant doesn't overflow I'm not worried.

Agreed, that's kinda my point. The evolutionary theory behind why we have feelings of grossness is just that "this thing is potentially dangerous to me," so we developed this sense of "gross" so we'd avoid the potentially harmful thing (although a quick google search doesn't bring back the study i'm thinking of that demonstrated this). But obviously that reinforced/learned feeling might not always be accurate.

I get grossed out by plenty of things, so I have to consciously evaluate whether it's just gross, vs actually a problem. If it's just gross, I can consciously then decide to just get over it and have a nice swim (or whatever) regardless.

EDIT: Here's a couple links about what I'm trying to get at:

Study on disgust and the spread of disease: https://royalsocietypublishing.org/doi/full/10.1098/rstb.201...

Article on digust wrt the spread of disease: https://www.nytimes.com/2012/01/24/science/disgusts-evolutio...

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