On Sun, Aug 15, 2010 at 6:20 PM, Richard A Jones <jones@colorado.edu> wrote:

> > North American (or at least US) spec is 11 inches, European is 14 inches.
> > If running a Propex you get better/more consistent results at 14.
>
> Loren:
>
> Just FYI.  With the current Propexes Karl shippes he notes
> that they are "orificed" for US pressures.  The label still
> seems to have the European standard pressure, but the serial
> number or something has "/US" appended to it.
>
> Only Karl could say when this change happened.
>
>
> That's good news.  Although not all of us have had to adjust the regulator
to get reliable operation some of us have had to and it's a PIA.