Glow-in-the-dark tampons are being used to fix bad plumbing

You might think glow-in-the-dark tampons have no use beyond being handy in nighttime trips to the bathroom, but you’d be wrong. They’re good for plumbing, too. In the UK, they’re being used to monitor our rivers for signs of ‘grey water’ - the bacteria-laden stuff that comes out of our dishwashers and showers.

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Glow-in-the-dark TAMPONS shed light on water pollution

Glow-in-the-dark tampons are being used to fix bad plumbing

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Glow-in-the-dark TAMPONS shed light on water pollution

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Glow-In-The-Dark Tampons Are Being Used To Fix Bad Plumbing

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Glow-in-the-dark tampons are being used to fix bad plumbing

I came back to my sink today and it looks like this. Any ideas of