The shop vac I have, from the eighties, has a ball that floats, and shuts
off the air if the tank fills.
Do the new shop vacs have a motor that's isolated from the air flow?
Christopher A. Young
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However, many (if not most) "shop vacs" ARE specifically made to suck not
only wet stuff but straight water. They do not pass intake air over the
motor like many household vacuums do. (The first 50 or so shop vacs on HD's
web site all say "Wet/Dry".)
What wet stuff?
Regardless, vacuum cleaners need air flow or they can burn out.
I think it would be fine for the purpose for a limited time interval. Shop
Most people have them.
Even a compressor Venturi jet will draw a vacuum.
How about canned vacuum.
There is no real differance in the simple air compressors and vacuum pumps.
The air that comes out of the compressor has to come from somewhere. It
does not just make the air that comes out of it. The same for the vacuum
pump. When it sucks out the air, the air has to go somewhere.
Well, with this attachement, you can.
You hook this device to an air compressor, turn on the air compressor, and
this attachment produces a vacuum. The AIR-VAC has no moving parts. It uses
the venturi principle to create a vacuum in the same way that paint is
sucked out of a container attached to a compressor.
Use a venturi attachment, as HeyBub suggests. I use one in my business,
to vacuum pot guitar pickups, and transformers. They're dirt cheap and
work very well. Just say "nay" to the naysayers who claim you can't use
compressed air to create a vacuum. It's standard operating procedure.
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