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Author Topic: What caused this?  (Read 975 times)

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Re: What caused this?
« on: February 22, 2023, 03:18:41 pm »
SiO2 is pretty impervious to just about anything but hydrofluoric acid, which would etch it to where you'd feel the difference. If there was ever any HF in your boiler, it is unlikely that you'd still have a boiler.
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