Thanks for your comment.

Having looked at websites on the regulator you mention below in your
reply, this appears to be the bit I'm missing from my setup which
would take guess work out with barrel pressures.

Many thanks you've put me on the right track which I'll now
investigate.

regards
DC
[color=blue]
>
>I have no idea about your situation, I'm afarid...never heard of the
>product you're talking about. I use 5 gal. SS soda kegs, a CO2 tank,
>and regulator. The guages on the tank give me the info you're looking
>for. Sorry I couldn't be of more help.
>
> -------->Denny[/color]