In my part of the world (Australia) a vacuum pump for gel blotting
(generating a vacuum of around 40cm H2O) costs about $1500 (US$1200) so
I decided to make one myself.
It costs around $80, is very easy to make and has its own vacuum gauge.
The easiest way to describe it by diagram, so if you want a copy just
email me at R.Passey at unsw.edu.au or FAX me on 61-2-9385-1389 and I'll
send you one ASAP.
Cheers,
Robert Passey.
