I've been doing a little reading on vacume bagging both for laminating and for sandwhich construction (thanks Bert), but still don't have a good sence of what I need and what I can get by with.
I found a used vacume pump that will pull agout 22.5"HG when connected to a 40gal tank. If I understand this correctly that is about the same as the 75kPa that Bert talks about using.
Does this sould like a good pump for the job?
Incase this one gets away from me, what sources are there for cheap pumps?
How much should they cost?
Please note I want a velatively trouble free system. I want to use it not tinker with it :)