Good point Billie.
I may have gone that way if i had seen them before i started. Maybe the next one i make when this fails. But then, i may as well just buy a real vac pump for it they are cheap enough these days.
I have the diaphram rubber anyway, so it cost me nothing and can save that $40 for beer. Plus a now know how they work and know that i can alter them to suit anything pretty much.
Did a bit more work on the table. Didnt get to do a test run due to unforeseen reasons but it's getting there.
4mm coreflute for the table top.
Not sure this will be strong enough but it will do for now untill i get come perspex.
The table legs are old supports off a trampoline that i had laying around for a special job.