We wish it were true but, alas, there is no chemical that turns pool water blue if someone pees in it. At Mel Magazine, Mike Rampton investigates:
“Most pools are 20,000 gallons (91,000 liters) or more, so to make a few ounces of urine show up as a bright color would take some serious chemistry,” says bzsteele, a former pool supplies store employee, who recalls new pool owners asking about the dye. “There are cheap tests that could detect urine, but things like sweat, detergent and lotions would also be likely to spike them, so you’d be thrown off by all kinds of false positives. And once the reaction had happened, I’m not sure how you would undo it and get the pool back to stable.”
There’s also the fact that disinfection byproducts, or DBPs — created when the chlorine in pools reacts with the endless streams of pee released into them — are far more harmful than chlorine or urine would be on their own. Haloacetic acid, trihalomethane and chlorite can all be created by chlorine and organic matter (sweat as well as pee) reacting together, and can lead to respiratory issues, eye complaints, “lifeguard lung” and asthma. Adding more volatile chemicals, then, is unlikely to improve matters. And although pool disinfection techniques that require less chlorine (such as UV light, saltwater and hydroxyl-based systems) are increasingly being taken up by pool owners concerned about DBPs, a color-changing substance to stop people peeing in the pool is still nowhere in sight.
“Peeing in the pool isn’t great for the water chemistry,” says bzsteele. “However, average pools are huge, have proper sanitation and great filtration where every drop is filtered and circulated multiple times a day. In the long run, whatever [dye] you added would probably be more expensive and worse for you and the pool equipment than just having a random kid pee in it every now and then.”
"The Eternal Lie of the Pools That Turn Blue If You Pee in Them" (Mel)
And the delightful metal sign above is available from Amazon here.
Troll Factory is an entertaining online edugame that shows you how disinformation merchants infiltrate social media and spread their corrosive anti-democracy propaganda. Yle’s Troll Factory game asks you to imagine you are a professional troll who tries to amass influence in social media by spreading fear, bias and suspicion using botnets, paid marketing and internet […]
In my latest podcast, I read my new Locus column: Fake News is an Oracle. For many years, I've been arguing that while science fiction can't predict the future, it can reveal important truths about the present: the stories writers tell reveal their hopes and fears about technology, while the stories that gain currency in […]
For many years, I've been arguing that while science fiction can't predict the future, it can reveal important truths about the present: the stories writers tell reveal their hopes and fears about technology, while the stories that gain currency in our discourse and our media markets tell us about our latent societal aspirations and anxieties. […]
There are a lot of different language apps out there because nobody learns anything the same exact way – especially not something as complex as a new language. For some people, the best way is to dive in and start talking, but that’s easier said than done if you’re not around those natives you aspire […]
There’s movie merch and then there are artifacts – one-of-a-kind items for the true fans only. These 11 items definitely fall into the latter category. We’ve unearthed movie art, props and other fan touchstones from the major nerd franchises of the last 50 years. Gaze upon these Star Wars and Marvel collectibles and don’t worry. […]
No matter what kind of office you work at, there’s probably an Excel expert in it. And no wonder: Businesses are still discovering uses for one of Microsoft’s flagship software suites beyond just bare-bones spreadsheets. Make October the month you become invaluable at work by taking one of these boot camps in Excel and its […]