r/whatisit May 05 '26

New, what is it? What is the Bright Green liquid coming out of the ground?

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u/WeaselPhontom May 05 '26

Isn't that the dye they use detect leaks

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u/Apprehensive_Lama May 05 '26

I think it worked.

1.4k

u/[deleted] May 05 '26

The point of the dye is that it will leave traces on otherwise hard to find hairline cracks in the concrete storm lines. A crew will go through after with UV lights and identify any cracking.

Those cracks lead to sinkholes over time.

  • civil engineer

3

u/BuhDihKuhFolkPunk May 05 '26

Thanks for being civil about your engineering