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Old 07-18-2011, 11:26 PM   #1
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Default Co2 water coloring

I'm considering adding some food coloring to the water supply to be circulated through my tube. Any reason why this would be unhealthy for the tube?

..or me?
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Old 07-18-2011, 11:34 PM   #2
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Default Re: Co2 water coloring

No. I did that once - but it faded within a week.
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Old 07-19-2011, 02:38 AM   #3
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Default Re: Co2 water coloring

What purpose does it serve: Looks or functionality?


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Old 07-19-2011, 02:44 AM   #4
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Default Re: Co2 water coloring

I ran antifreeze in my tube for a while, can't for the life of me remember exactly why but I did.

You could dribble a little by the inlet on your pump and watch it get sucked around, that would be pretty cool and it would show you just how well your pump works!
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Old 07-19-2011, 12:56 PM   #5
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Default Re: Co2 water coloring

I'd like to do it for show. Even though I change the water out all the time, I think it might look a little less gross if the liquid were a nice swimming pool blue instead.

So the antifreeze didn't leave any residue inside your tube?
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Old 07-19-2011, 07:54 PM   #6
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Default Re: Co2 water coloring

Quote:
Originally Posted by Meatball View Post
So the antifreeze didn't leave any residue inside your tube?
It could...might be better to use ethanol (30-40%) or denatured alcohol so it's also colored
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Old 07-19-2011, 09:10 PM   #7
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Default Re: Co2 water coloring

It won't hurt anything as long as you rinse the tube out so nothing dries and stains. Even that won't hurt the functionality but it won't look good either. A mixture of distilled water and antifreeze is good if you have a closed system that stays full in the event that the laser is stored in an unheated space where it has the potential to freeze. I've seen pics of a few argon and CO2 tubes that had water freeze in the cooling jacket, the ice expands with predictable results.
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Old 07-20-2011, 02:34 AM   #8
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Default Re: Co2 water coloring

^ ive seen what water freezing inside a water bottle does, i surely don't want to think about what happens to a laser
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Old 07-20-2011, 06:51 AM   #9
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Default Re: Co2 water coloring

^ Need I say more?



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Old 07-20-2011, 07:29 AM   #10
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Default Re: Co2 water coloring

Impressive pic of a destroyed tube! Maybe it could be super-glued back together?
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Old 07-20-2011, 07:44 AM   #11
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Default Re: Co2 water coloring

Gotta give the credit to GooeyGus for that one
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Old 07-21-2011, 07:19 PM   #12
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Default Re: Co2 water coloring

Aww man that one made me queasy.. I've seen that with a nice coherent medical laser before. Not pretty...
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