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CO2 regulators

At 03:48 PM 9/7/00 -0400, "Neil Travis" <travisn at gravity_net.au> wrote:

>Any reasonable gas regulator should deliver the preset pressure until the
>input pressure is lower than the output setting and then flow will cease. If
>not then it is rubbish. A good regulator should be down line sensed not up
>line. When the preset pressure is the same as the input pressure it will
>simply stop flowing.

It is important to point out that this bit of science is another one of 
Neil's laws that only applies in AU and NZ.  And only if you use equipment 
made in Zambia.
Dave Gomberg, San Francisco            mailto:gomberg at wcf_com
NEW Planted Aquaria Magazine:        http://www.wcf.com/pam