This time lapse video is always fun to watch. The Chicago River has been died green on St. Patrick’s day for the past 40 years, can’t say that I have seen it in person, but it’s amazing how they can do this.
I made Shamrock Shakes again this year. I was disappointed I was unable to find my favorite cookies this year. Hate when that happens 😦
I had so many of these last year, that I think I’m good this year 😉
Carrie Ann Alexis 
So interesting! That would be so fun to see! Shamrock shakes sound delish! You did St. Patty’s day up right – even minus the cookies. 😉
xoxo
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I’ve heard of this happening. I think the news did a segment on it (at least) once. I’m surprised it doesn’t affect the wildlife, or have a damaging effect downstream. Did they experiment with it before they started doing it? Hmm… inquiring minds want to know. Or, at least the nosy people do.
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Back in the 60s, they actually used a chemical that was used to see exactly where dumping was occurring. Someone got the bright idea to use 100 lbs of it to turn the river green, it lasted an entire week. Over the next several years, they figured out it only took 25 lbs of dye to stay green for one day. But then of course environmentalists chimed in and warned that is was actually damaging the river even more, since it was intended to spot pollution, and was an oil-based fluorescein.
So now they use a vegetable based orange powder that turns green when mixed with water, and only stays green for 5 hours. It actually takes 45 minutes, with 6 member of the Plumbers Union, on 2 boats. 🙂 so there you have it!! When I saw the video I actually thought to myself, I wonder what they used, and found this very interesting.
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A whole bunch more info than I would have looked for. lol
My pondering should have been hypothetical. 😀
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I had no idea they did that. How?
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It actually takes, 45 minutes, with 6 member of the Plumbers Union, and 2 boats. It’s a vegetable based orange powder which turns green when mixed with water, and only stays green for about 5 hours. Very interesting.
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