READ MORE: TikTok's latest kink test trend helps you find what type of BDSM you're intoSouth Yorkshire Fire and Rescue Service explained how they're used to save lives in a post on TikTok, Birmingham Live reports.The signs play a huge role even though the majority of us have no clue what they really are.Posting on the video-sharing platform, the service said: "POV: You've walked past these small yellow signs your whole life."But it was today you realised, finally, after all these years, they are there to tell firefighters where the hydrants are."The image in the video tells firefighters there's a 100mm water main 10 metres away.
And as you can image, people were completely blown away by the explanation. One person wrote: "I never knew. Every day is a school day thank you." Another added: "I've never even seen one of these signs never mind know what it means."While a third said: "Good to know.
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