Co op universal vacuum pump

[lastwoodsman]

Just picked this up from a dairy barn at the neighbors. Still runs fine. Has anyone one used one like this and what can I expect in vacuum?
I may just turn around and sell it.
Any info would be helpful.
Thanks.
Woodsman5957

[PATheron]

How many taps are you using it on? I think you might be surprised what it does. Its a piston pump and it might be as much as 5 cfm looking at the head. You may be able to run 20 inches on 3 or 400 taps just guessing without knowing the rating. Theron