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Life span of 2 part Mixture

Guest
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Jun 4, 2008
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How long would you say that already mixed 2 part solution is good for? Or does it even become bad?
 
Guest
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Mar 24, 2009
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I'd like to know, too. I've had a sealed 1G kit from BRS for ~1-year with no ill effects. But I'd like to know if there really is a shelf-life.
 
Supporting Member
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Dec 9, 2005
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I posted a similar question (http://www.bareefers.org/home/node/7798). My question was if it keeps for 3mos. No problem.
 
Guest
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Mar 24, 2009
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Sorry, I didn't read the question well enough. I thought the question was about dry 2-part.

But I did have my mixed 2-part for about 5-6 months in a sealed container as it was being dosed. (low usage) My parameters were always fine.
 
Past President
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You can make up your 2-part and store as liquid. No problem. It won't go bad.
 
Guest
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Mr. Ugly said:
You can make up your 2-part and store as liquid. No problem. It won't go bad.
I didn't think it would but I wanted to make sure before I used it.
Thanks Norm
 
Guest
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Nov 22, 2005
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Yeah, you'd think chemically things wouldn't go "bad" but weird things happen. For instance, mixed kalkwasser apparently absorbs CO2 from the atmosphere which precipitates CaCO2 or something.

V
 
Past President
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That's normal, not weird, for kalk :D

You get calcium carbonate, CaCO3.
 
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