Re: [GSAS-Member] CO2 Systems

["Rick Rose" <rick-rose@comcast.net>]

If I understood Susan's post correctly, it sounds like she is turning off
the needle valves at night (and leaving the regulator on?)  If that is the
case, then I imagine that the pressure continues to build up over night so
that there is a lot of pressure behind the needle valves when they are again
turned on the next morning.  Again, I'm not sure if I interpreted the
problem correctly, but if I did, then the answer is probably just to turn
the CO2 off at the regulator instead of the needle valves.

Rick

-----Original Message-----
From: gsas-member-bounces@thekrib.com
[mailto:gsas-member-bounces@thekrib.com] On Behalf Of Erik Olson
Sent: Monday, February 19, 2007 7:54 AM
To: Greater Seattle Aquarium Society member chat
Subject: Re: [GSAS-Member] CO2 Systems

Are you also using June's needle valves?  The downside of those is that 
they use hose barb instead of a screw fitting, and cannot easily be built 
into a manifold.  On the other hand, I have had no problem with them 
popping off.  You should be able to drive multiple tanks with the 
regulator set at 10-15 PSI and the needle valves regulating flow.

Maybe consider using vinyl airline tubing instead of silicone?  You can 
also get little plastic clamp thingies for that size tubing, maybe at 
Lowem-Depot.

You should also be able to add a solenoid downstream to any regulator 
without problem.   I still never see the point of it though...never used 
one in 15 years now.

   - Erik

On Mon, 19 Feb 2007, John wrote:

> Fittings, Inc will take the time to help you design exactly what you
> need.
> Graingers may have something on the shelf that would work.
> They are both just south of downtown. Probably closed today.
>
>
>
> On Feb 18, 2007, at 10:01 PM, Susan Welenofsky wrote:
>
> I have June O's CO2 regulator, and I think the brass things are needle
> valves. The trouble is when I have more that one connection, it's all
> screwy. I shut the valve off at night. When I turn it on, it is high
> pressure, sometimes blows the silicone hoses. Then I have to adjust the
> pressure valve. Then the pressure goes way down after awhile, and I
> have to
> readjust. Then adjust all the needle valves. Then move the hoses. Then
> the
> CO2 pours out or doesn't come out all. Then fiddle with the needle
> valves
> again. Then there was the time all the gas escaped into the apartment.
>
>
>
> This thing is driving me crazy. It seems like I can only run one tank
> successfully, when I'd like to do two or three, like June. However, I
> would
> like to turn it off at night, right? Does anyone here know of a good
> system
> or can direct me to someone or someplace that does? I see that it may
> cost
> $322 at Drs. Foster and Smith for a complete package that has an Azoo
> regulator. I've heard the JBL regulators on Ebay are no good and
> Milwaukee
> is, and of course ADA is the most expensive money can buy.
>
>
>
> Susan
>
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>
>
>  
>  
> Dr. John F. Ruhland
> The Natural Health Medical Clinic
> 4002 - 25th Avenue S, Seattle, WA 98108
> 206-723-4891
> www.drruhland.com
>
>
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-- 
Erik Olson
erik at thekrib dot com



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