I’ve got the vacuum pump and I regularly pull down to -25 lbs in my vacuum bag. Does your review state that you put the put the wood into the mason jar and then put in your mixture and then pull the vacuum in the glass jar.
I don’t know how much vacuum you could pull in a mason jar before collapsing it. But it would be interesting to get a freon tank and cut a hole in the side, weld on a steel plate that is removable and put your mix in the freon talk. I’ve used them as a vacuum reservoir.
But how about this. A plastic pipe that you could fit a wide mouth jar in and then seal off the plastic pipe and hook it up to the vacuum pump. That way the glass jar wouldn’t collapse, but it could hold any chemicals that might dissolve the plastic pipe. A toilet plate on the plastic pipe with a clear lid would allow you to see inside and see if your bubbles are coming out of the wood.
-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †
