Boiling Water to Make Ice

After some conversation on the subject on a popular HVAC website, this was yet another experiment I just had to do! What I have done here is add some tap water to a baby food glass jar. I rigged a schrader valve to the lid. The first part of the test I attached two recovery tanks that were already in a deep vacuum. These tanks are the size of your typical Propane Tank for a BBQ grill. A hose is connected from them to the small glass jar. I do this to obtain a quick change from atmospheric pressure in the

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