Envirosafe?

[Henry A Harper III]

If you already have an air compressor then here's a venturi vacuum "pump"
for $13. Cheap enough?
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=96677

>
> I've charged up many systems that were "empty" without pulling a
> vacuum and
> never ran into problems. Is it ideal? Of course not, but it does work from
> what I've seen.
>
> Dave
> -Audiless for now
> -Wanted CGT Triple White
>
>
> On 10/27/08, Dave Yentema <yentemad at rider.edu> wrote:
> >
> > I broke down today and bought some of that envirosafe stuff,
> and i've got
> > some questions for those who have done it. I picked up 3 6 oz cans, some
> > stop leak(to help condition my new seals) a can of oil, a low side gauge
> > and
> > some oil level testers.
> >
> > I've read that you don't need to vacuum the system, and think
> that absolute
> > BS because you can't compress air into a liquid. I don't really
> have access
> > to a vacuum pump, but I've been told you can flush the air out of the
> > system
> > by running some of the refrigerant in one side and let it push
> the air and
> > such out of the other side...
> >
> > Any BTDTs would be awesome, I'd love to know what low side pressures you
> > were looking at, etc.
> >
> > Thanks,
> > Dave
> >