Two tanks, one cylinder

argnom

Guru Class Expert
May 24, 2009
109
0
16
Montreal, Canada
Hey guys! Great forum, a lot of info in here.

I have a question. Probably a simple one but I would rather have your opinion before I go out and order the parts.

I purchased a pressurized CO2 kit a couple of weeks ago for my 28gals tank. I have to say I am absolutely amazed at the results. BBA is pretty much all gone after using it for 3 weeks and the "pearling"... Wow! It looks like a glass of Champagne in there! The relusts are so good that I would like to use the CO2 cylinder on two tanks if it is possible (should be... I think...).

The current setup I have is as follows:

CO2 cylinder --> Regulator (output @2psi) --> selenoid valve --> needle valve --> CO2 line --> step diffuser.

All the components are screwed into each onther. There is no CO2 line in between. Except between the needle valve and the diffuser of course.

I tried to simply put a "T" splitter after the needle valve, but since the pressure is so low after the needle valve, the CO2 simply flows out of the line that gives the less resistance (shallow tank) and noting exists out of the deeper tank. Logical after all...

Here's the setup that I think would work.

CO2 cylinder --> regulator --> 2 output manifold --> selenoid valves (on both outputs) --> needle valves (on both outputs) --> CO2 line --> diffusers in both tanks

Would this setup work or will the gas simply flow mostly (if not all) out of the CO2 line that creates the less resistance?

Also, since one of the tanks has no glass canopy, there is some evaporation that I top off every 2-4 days. Will the reduction in water level mess up the settings on the needle valves? Less water = less resistance right?

Perhaps I'm trying to complicate things more than they have to be... I work in IT after all. Why make something simple when you can make it complicated. :p

Some suggestions would be appreciated.

Thanks!
 

shoggoth43

Lifetime Charter Member
Lifetime Member
Jan 15, 2009
1,092
11
38
The proposed idea will work fine. You just want to make sure you keep an eye on the tank. Any adjustments to the regulator pressures will now affect two tanks. The pressures you're likely to use will not be overly affected by water levels.

-
S


argnom;37151 said:
Hey guys! Great forum, a lot of info in here.

I have a question. Probably a simple one but I would rather have your opinion before I go out and order the parts.

I purchased a pressurized CO2 kit a couple of weeks ago for my 28gals tank. I have to say I am absolutely amazed at the results. BBA is pretty much all gone after using it for 3 weeks and the "pearling"... Wow! It looks like a glass of Champagne in there! The relusts are so good that I would like to use the CO2 cylinder on two tanks if it is possible (should be... I think...).

The current setup I have is as follows:

CO2 cylinder --> Regulator (output @2psi) --> selenoid valve --> needle valve --> CO2 line --> step diffuser.

All the components are screwed into each onther. There is no CO2 line in between. Except between the needle valve and the diffuser of course.

I tried to simply put a "T" splitter after the needle valve, but since the pressure is so low after the needle valve, the CO2 simply flows out of the line that gives the less resistance (shallow tank) and noting exists out of the deeper tank. Logical after all...

Here's the setup that I think would work.

CO2 cylinder --> regulator --> 2 output manifold --> selenoid valves (on both outputs) --> needle valves (on both outputs) --> CO2 line --> diffusers in both tanks

Would this setup work or will the gas simply flow mostly (if not all) out of the CO2 line that creates the less resistance?

Also, since one of the tanks has no glass canopy, there is some evaporation that I top off every 2-4 days. Will the reduction in water level mess up the settings on the needle valves? Less water = less resistance right?

Perhaps I'm trying to complicate things more than they have to be... I work in IT after all. Why make something simple when you can make it complicated. :p

Some suggestions would be appreciated.

Thanks!
 

shoggoth43

Lifetime Charter Member
Lifetime Member
Jan 15, 2009
1,092
11
38
I'm in IT as well. It's all too easy to "outclever" yourself.

-
S
 

Gerryd

Plant Guru Team
Lifetime Member
Sep 23, 2007
5,623
20
38
South Florida
Hi,

20 years now in IT and I live by the KISS method...........I leave it to the users to ask for complex stuff lol

yes, the mainfold works well for 2 or more tank with c02.......

Let us know how it works.......
 

argnom

Guru Class Expert
May 24, 2009
109
0
16
Montreal, Canada
Indeed, there seems to be a pattern here. :)

Lets compare IT work with aquarium keeping.

IT: Spending countless hours trying to figure out what went wrong with a box
Aquarist: Spending countless hours trying to figure out what went wrong with the box
IT: Spending hours trying to find the best possible settings for a box
Aquarist: Spending hours trying to find the best possible settings for a box
IT: Spending hours trying to explain how to use a system to a new employee
Aquarist: Spending hours trying to explain how to use a system to a new aquarist
IT: Spending tons of money on a box to get the best possible display quality
Aquarist: Spending tons of money on a box to get the best possible display quality
IT: Spending coutless hours in forums to get answers to your questions
Aquarist: Spending countless hours in forums to get answers to your questions

Sounds pretty much the same to me. :D

I'll keep you guys posted on how things go with the CO2 as soon as I setup the whole thing. It could take a couple of weeks.