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That is essentially what we did. The seal on our pressure pot was not perfect so the pressure would drop from 60 psi down to 0 and then we would repressurize. This occurred 2-3 times over the span of...

You want to use both, a vacuum to pull out the air & moisture and pull in the solution then pressure to push it in further.
When you use only pressure you trap the air in the wood which prevents the...

I think that Glen will be able to eventually answer the question about warping...and that will be key. If the wood does not warp then using a thin piece will be processed easier & quicker.
To me,...

A few years back I used an old paint sprayer pot for a container, almost 2 gallon capacity, and 60 lbs of pressure. The wood was mostly spalted maple. Approx 1.25" square by 7" long. I also tried...