The hunt for the vacuum

Regular readers will recognise that we have been searching for the fabled 20+ inches of vacuum that our fellow  stem boaters claim to achieve…. We, meanwhile, have only ever seen 5 to 10 inches at best 😦

Well, over the last few weeks, I think we have been edging towards an answer, and I think there is some valuable information for other steam plant operators, that can be gleaned from our experiences…

The Clues

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