Tiny vacuum pump

Jim Weir wrote:

> Does anybody have an idea on how to make a tiny little vacuum pump on the order
> of an aquarium pump or so that will draw just a few inches of water? Preferably
> 110, but I can rig up a 12 volt supply if necessary.
>


If you have a compressor, use a venturi vacuum generator.
Harbor freight has them for about $10 from time to time.

Take the brake system vacuum pump from the back of the alternator on almost
any diesel light truck, 4wd, etc. For the level you are looking for you
could probably hand crank it with a lawn mower zip starter and use it's
return spring to set it for the next pull.

Depends on how green you want to be, you're both recycling and people
powering it!
;<)
Bushy

Jim,

That air compressor sprayer I gave you a couple of years ago is just a
venturi. Use the liquid imput end to generate the vacuum. Unless ypu lost
it, you already have what you need.

--
Bob (Chief Pilot, White Knuckle Airways)


"John Mireley" <mireley@cem.msu.edu> wrote in message
news:bu970m$1f5s$1@msunews.cl.msu.edu...
> Jim Weir wrote:
>
> > Does anybody have an idea on how to make a tiny little vacuum pump on
the order
> > of an aquarium pump or so that will draw just a few inches of water?
Preferably
> > 110, but I can rig up a 12 volt supply if necessary.
> >
>
>
> If you have a compressor, use a venturi vacuum generator.
> Harbor freight has them for about $10 from time to time.
>
>