needle valves

[Greg Dalton]

Using Co2 tank and I can get some sort of slow bubbling with it but
anyone got a
cheap website or maybe a part from Lowe's that I can use for a needle
valve??

[LeighMo]

>Using Co2 tank and I can get some sort of slow bubbling with it but
>anyone got a
>cheap website or maybe a part from Lowe's that I can use for a needle
>valve??

Someone here used a needle valve from Home Depot. I think it was Cichlid
Chick. It was brass, and only a couple of dollars. She said it worked fine,
though I don't know how long it held up over the long term. If she's reading
the newsgroup, maybe she'll give us an update.


Leigh

http://www.fortunecity.com/lavender/halloween/881/

[Bob Alston]

I tried the "Home Depot cheapo" valve setup and never could get it to work.
I got a real needle valve for about $20 plus shipping. Works great.

Bob
"LeighMo" > wrote in message
...
> >Using Co2 tank and I can get some sort of slow bubbling with it but
> >anyone got a
> >cheap website or maybe a part from Lowe's that I can use for a needle
> >valve??
>
> Someone here used a needle valve from Home Depot. I think it was Cichlid
> Chick. It was brass, and only a couple of dollars. She said it worked
fine,
> though I don't know how long it held up over the long term. If she's
reading
> the newsgroup, maybe she'll give us an update.
>
>
> Leigh
>
> http://www.fortunecity.com/lavender/halloween/881/

[Aqua]

> Someone here used a needle valve from Home Depot. I think it was Cichlid
> Chick. It was brass, and only a couple of dollars. She said it worked
fine,

http://www.dlink.org/aqua/CO2.html

This works fine for me.

--
Thank You

Dominic
http://www.dlink.org/aqua

[zxcvbob]

Greg Dalton wrote:
>
> Using Co2 tank and I can get some sort of slow bubbling with it but
> anyone got a
> cheap website or maybe a part from Lowe's that I can use for a needle
> valve??


I don't use a needle valve, I use a flow restrictor that I made by
crushing a piece of 1/4" copper tubing with a hammer and anvil until it
will just barely pass any CO2. It's similar to the capillary tube used
to separate the high and low pressure sides in refrigeration. I adjust
the actual bubble rate by adjusting the pressure at the regulator. It
is *very* nonlinear; to increase the flow from 2 bubbles per second to
3, I might have to increase the regulator pressure by 10, and to get 4
bubbles per second might take 40 pounds.

Best regards,
Bob