Gast makes nice units. 'Medium', in my book, is about 22-24". The
unit , two-stage, from HF, pulls 27" (measured with 2 different
gauges). I call that a hard vacuum. Any more than that is not needed
when baging veneer. For hold-down, I like 27" or more.
Hell, I paid $80 for a GAST two stage medical pump.
It can run 24x7. Got it on the internet a few years ago.
Hard to pay $50 for a manual pump....No bag ever holds a seal 100% so
you must have to pump regularly.
On 2/27/2012 3:56 PM, Pat Barber wrote:
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