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Old 03-10-2020, 07:04 PM   #23
JSeery
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Join Date: Nov 2012
Location: Wichita KS
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Default Re: whats this fuzz growing in my new radiator?

Water is a solvent and fairly reactive. Add in different metals and you end up with what you have. The water needs some type of treatment/conditioner in it, which most anti-freezes have. But you can add them separate from the anti-freeze if your not wanting to run it for some reason. But straight water is not a good idea as you can see.
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