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DR.V
Wed Jul 13, 2005, 03:59 PM
Hi all , for those who uses BOC gas tube for their CO2 , what kind of regulator and diffuser do you use ??

Does all regulator "universal size" ? Means theres only one size that would fit the tube ?

Thanks

DR.V
Wed Jul 13, 2005, 06:14 PM
Maybe someone can help me after looking at these pages :

https://pgw100.portal.gases.boc.com/boc_sp/medical/Medical_Gases/Carbon_Dioxide.asp

https://pgw100.portal.gases.boc.com/boc_sp/medical/OxyCare/Regulators_And_Flowmeters.asp

Thanks

Dave76
Thu Jul 14, 2005, 12:55 AM
Hi Dr V

I use a BOC CO2 cylinder - size D food grade cylinder.

I'm using the Tunze regulator & CO2 controller going into a dupla reactor - all stored in cupboards under my tank.

Your best bet would probably be to ring BOC or go in to one of their sales stores - I know there are different size apaptors & threads depending on the source of the tanks & regulators.

Hope this helps.

Dave

revkev
Thu Jul 14, 2005, 06:53 AM
BOC Regulator 105207 CO2 ,Flowmeter 105215 this controls your bubble counter just get an adaptor to fit your airline I will post a pic of mine when my camera battery recharges. you can make your own CO2 diffuser from pvc tube and irragation parts.
Revkev

DR.V
Thu Jul 14, 2005, 07:18 AM
Hei Dave, could you take some pic of your co2 setup , if possible ?? Thanks

DR.V
Thu Jul 14, 2005, 07:45 AM
Hi all, so the the inlet ( the one facing right ) goes into the regulator right ?

And the outlet ( facing down ) will goes into the tank. What kind of hose would you use that fit onto that outlet ?

Thanks

DR.V
Thu Jul 14, 2005, 07:47 AM
This is the regulator

Regulator 105207

revkev
Thu Jul 14, 2005, 08:07 AM
Here is the CO2 reg and flowmeter see adaptor for air line at bottom of flowmeter.

DR.V
Thu Jul 14, 2005, 12:20 PM
Hei revkev, where do you buy that "thing" ( i dont know what its called ) that joined the flowmeter and the airtube ??

Thanks

Dave76
Fri Jul 15, 2005, 12:32 AM
Hi Dr V

Heres some pics of my setup as requested. Sorry for the bad shots of the reactor - bugger of a spot to take photos from :)

Dave

DR.V
Fri Jul 15, 2005, 05:07 AM
Thanks for the pic Dave

Dave76
Fri Jul 15, 2005, 07:30 AM
No probs at all.

Let us know how you go :)

Dave

DiscusMan
Fri Jul 15, 2005, 11:32 AM
I have a C02 regulator that i bought from BOC that i will sell if your interested. USed very little and i gave up keeping plants due to having to many tanks and not enough time as it is.

PM me if your interested. Im in Sydney as well

Wayne

Bad Inferno
Sun Jul 17, 2005, 06:43 AM
Do not go to a gas outlet BOC etc....You end up paying industrial rates ~$80/year....

Find yourself a "home brew" shop and rent the same cylinder off them. The yearly rental is at least half than that from an industrial supply. I think I got a quote for a full cylinder for $35.00 / year. You still end up renting the same bottle from BOC just the rental is cheaper for the home user (brewers).

I have been running CO2 for about 1 year off a fire extingiusher (spelling ?)

I have a very good ph regulator control through a solenoid and needle valve...however I just run the CO2 through a silicon tube straight into the tank through a good quality air stone. I control the PH to within +-0.03ph with just an air stone no fancy defuser.

Just make sure you get the proper CO2 regulator as the diaphram is special for CO2 applications.

cheers rob

DR.V
Sun Jul 17, 2005, 12:48 PM
Thanks for the advice Bad Inferno...

Im also thinking of using small LGP gas 1.5kg, BIG W sells them for $25.

Benny
Sun Jul 17, 2005, 01:16 PM
but who will fill it with lpg gas? if u find someone, i will come with u hehehe !!!

I found an interesting source of co2.....

Theres some home-soda drink machiney thing, that is avail, and u can buy replacement co2 containers, with it was somethin like 40L co2 gas for ~$40 at kmart...

just need to inspect the fittings on the tank, really

DR.V
Sun Jul 17, 2005, 02:30 PM
but who will fill it with lpg gas? if u find someone, i will come with u hehehe !!!

Well I guess when you buy the gas just use them for cooking or something. When they're finished just refill with CO2. One of LFS here can refill CO2.

Benny
Mon Jul 18, 2005, 05:30 AM
soz i meant co2 gas not lpg...

which lfs will refill with co2???

Dave76
Mon Jul 18, 2005, 05:38 AM
You may want to check with refillers first to see if they will actually refill an LPG bottle with CO2. CO2 bottles may be certified differently to LPG bottles.

Dave

Benny
Mon Jul 18, 2005, 07:13 AM
thats what i thought :S

revkev
Mon Jul 18, 2005, 07:51 AM
Not a good idea could go bang LP gas bottles for LP gas CO2 bottles for CO2. :shock: