On Tue, 29 Nov 2005 21:46:53 GMT, "Leo Lichtman"
wrote:


"Grant Erwin" wrote: (clip) I'm running it 20 cubic feet per minute at 20
psi, (clip)
^^^^^^^^^^^^^^
The part I don't get is the "20 psi" part.


It's inconsequential for low pressure like 20 PSI. Ig's responses
were right, except that the delivery PSI will determine how much gas
gets left unused in the bottle. If "full" is about 2150 PSIG
(146.3 bar) 20 PSIG (1.36 bar) is better than 99% depleted.