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Re: [AGA Member] CO2 regulator question or -- Irregular regulation
I doubt they're normal if they are due to something in the
regulator causing them.
Regarding the pops of the needle, is this fast or slow. If
it's momentary, is it in sympathy with the bubbles escaping
from the CO2 line? Or does it rise slowly over several
secdonds and then fall slowly over several seconds?
sh
--- david <hipchack@yahoo.com> wrote:
> hmm... I see. I checked the gauges for leaks and they
> also appear to be fine. I have been busy with school
> lately and haven't been able to keep a close eye on my
> aquariums. They're running in "automatic" mode (haha!)
> right now. I will keep a close eye on the co2
> regulator now though and the co2 levels in the
> aquarium. If my co2 tank empties again I can assume
> something is wrong with the regulator and try to
> further test it out.
>
> Is there anything that would explain the "pops" I see
> with the needle in the output gauge? Could this be due
> to grit within the regulator? Is the "hissing" within
> the regulator and these pops normal?
>
> thanks,
> david lim
>
>
> --- "S. Hieber" <shieber@yahoo.com> wrote:
> > Some diaphragms are made of metal (some stainless
> > steel)
> > and some use rubber, which is more likely to develop
> > a
> > leak. If a diaphragm is leaking, your regulator
> > should have
> > a hard time maintaining steady pressure. Also if the
> > valve
> > seats are imperfect (grit or whatever) the same
> > thing can
> > happen. In each of those cases you would either be
> > sending
> > the CO2 to the atmosphere or to the aquarium.
> >
> > The gauges use, essentially, long curved brass
> > balloons --
> > when the pressure is greater, the balloons tend to
> > straighten, which pushes the lever that moves the
> > needle. A
> > balloon could leak, which is why I suggested
> > checking the
> > valves.
> >
> > Pure supposition, compared to the rock hard
> > empiricism so
> > far ;-): A fine crack in a diaphragm or balloon
> > could allow
> > gas to escape or flow too fast only for a short
> > while-- as
> > the metal moves it opens and closes the crack. But
> > if
> > enough is escaping into the aquarium to quickly
> > empty the
> > CO2 tnak, I don't see why it wouldn't raise the CO2
> > level
> > inthe aquarium.
> >
> > A stumper. Hmmmmph!
> >
> > sh
> >
> >
> >
> >
> > --- david <hipchack@yahoo.com> wrote:
> > > I have almost just covered the co2 regulator in
> > soapy
> > > water but found no leaks at this time. Most likely
> > > there was a leak before, but it isn't there now.
> > My
> > > regulator and fittings are not glued together so
> > at
> > > times they can become loose. It was an experiment
> > of
> > > mine put together a dual stage regulator with two
> > > swagelok metering valves. I plan to take apart the
> > > apparatus in the future. However, I am a little
> > > concerned with the regulator making the hissing
> > noise
> > > WITHIN the body of the regulator. Could it be one
> > of
> > > the stages are bad? I will apply soapy water
> > around
> > > the gauges to see if there is a leak in the casing
> > or
> > > anything. Thanks for the reply scott,
> > >
> > > david lim
> > >
> > >
> > > --- "S. Hieber" <shieber@yahoo.com> wrote:
> > > > If your CO2 tank is emptying much too quickly
> > and
> > > > your
> > > > Aquarium CO2 levels are running exceptionally
> > higher
> > > > than
> > > > normal, then you must have a leak.
> > > >
> > > > Did you check the gauges for leaks?
> > > >
> > > > sh
> > > > --- david <hipchack@yahoo.com> wrote:
> > > > > Hey all,
> > > > > My co2 regulator is making a hissing noise and
> > i
> > > > was
> > > > > wondering if it was normal? The hissing noise
> > is
> > > > > coming from within the regulator. Also when I
> > > > decrease
> > > > > the co2 regulator knob the noise will go away
> > and
> > > > once
> > > > > the output reaches 10 psi the needle on the
> > gauge
> > > > will
> > > > > pop back to 20 psi but fall straight back to
> > 10.
> > > > It is
> > > > > a veriflo dual stage regulator. I checked for
> > co2
> > > > > leaks but could not find any. The reason I ask
> > is
> > > > > because this regulator went through a 5 lb co2
> > > > tank
> > > > > within a week, which sometimes occurs because
> > a
> > > > > fitting is loose. However, I replaced the tank
> > and
> > > > > checked the fittings and there are no leaks. I
> > > > have
> > > > > another co2 regualtor built by scott cerrata
> > which
> > > > > makes no noise whatsoever. thanks for the
> > help,
> > > > >
> > > > > david
> > > > >
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> > > > =====
> > > > S. Hieber
> > > >
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