Suggestions for diy glycol chiller fluid?

Agreed.

I suspect I removed it. Not certain. Sticking the probe in a glass of warm water was the protocol when I showed up. That didn’t seem like a win to me.

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Any thoughts on re-proofing cryo-tek? Epsom salts? Sieves? Found a barrel for free but it must have too much water because it only tested to -10.

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You can do a simple distillation to remove some water, or a membrane.

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Zeolites, other seives or a column distillation is your way to go.

A water removal membrane is $$, probably north of 80k on a diy setup. It’s high temp ceramics and only offer maybe 50% benefit energy cost.

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reflux

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