On Wed, 13 Feb 2008 22:29:41 -0600, "jusme" wrote:

Not so, Larry.....open.

Can't use vacuum either.

Why not?

I can tell you from experience that a good vacuum rig is the way to
go. I don't do WVO but I do use waste engine oil to heat my shop. I
tried several different type's of pumps then I finally made me a
vacuum trailer. Night and day difference. I can pump 200 gallons of
waste oil out of any container I want to in less than 20 minutes with
a old wore out engine.

BTW everybody keeps talking about power steering pumps being gear
pumps. They're not. Instead they're vane pumps and they don't take
kindly to dirt or any type of contamination. A actual gear pump is
much more tolerant of contamination than a vane pump.