![TIL urine indicator dyes for pools are a myth. There is no such thing as a chemical that turns urine in swimming pools blue or red. : r/todayilearned TIL urine indicator dyes for pools are a myth. There is no such thing as a chemical that turns urine in swimming pools blue or red. : r/todayilearned](https://external-preview.redd.it/EHNLl3EEIjStsqPZh6EwUG-nBuvfNl4Q35u82wvPqko.jpg?auto=webp&s=e8ce9362e5ea813298c13cf932d167be1cc0e352)
TIL urine indicator dyes for pools are a myth. There is no such thing as a chemical that turns urine in swimming pools blue or red. : r/todayilearned
![Tangnade Swimming pool symbol Metal Sign Iron Sign Pool Sign Urine Detector Iron Painting Yard Sign 8x12 In as shows - Walmart.com Tangnade Swimming pool symbol Metal Sign Iron Sign Pool Sign Urine Detector Iron Painting Yard Sign 8x12 In as shows - Walmart.com](https://i5.walmartimages.com/asr/3ce65077-7dcd-40f6-8206-7cd86db7a848.439660b57644c8c9a002e7f95401eaeb.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Tangnade Swimming pool symbol Metal Sign Iron Sign Pool Sign Urine Detector Iron Painting Yard Sign 8x12 In as shows - Walmart.com
![Amazon.com: This Pool Is Equipped With Urine Detector Sign, Pool Sign, 10x14 Inches, Rust Free .040 Aluminum, Fade Resistant, Indoor/Outdoor Use, Made in USA by Sigo Signs : Patio, Lawn & Garden Amazon.com: This Pool Is Equipped With Urine Detector Sign, Pool Sign, 10x14 Inches, Rust Free .040 Aluminum, Fade Resistant, Indoor/Outdoor Use, Made in USA by Sigo Signs : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61BdZ-ZTI6L._AC_UF1000,1000_QL80_.jpg)