DIY CO2 one gallon Y splitter? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 08-31-2013, 12:39 AM Thread Starter
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DIY CO2 one gallon Y splitter?

HI All,

Was wondering if anyone has ever tried a DIY co2 which splits in to two diffuser.

ANyone have experience if it will work? I was thinking of using a bigger one gallon size

Also I fixed my DIY CO2 problem, it was leaking on the cap the caulk I used never really dries so i used Epoxy Resin!!!

Thanks
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post #2 of 8 (permalink) Old 08-31-2013, 01:29 AM
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It is very unlikely that you would ever get a split to work. The only way it would work was if you had EXACTLY the same amount of back pressure on each line. If not then you would get more on one than the other, more likely you would get little to none out of one of them.
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post #3 of 8 (permalink) Old 08-31-2013, 02:44 PM
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isnt those y splitters called a gang valve? theyre like $4 at petland


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post #4 of 8 (permalink) Old 08-31-2013, 03:15 PM
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Quote:
Originally Posted by Bandit1200 View Post
It is very unlikely that you would ever get a split to work. The only way it would work was if you had EXACTLY the same amount of back pressure on each line. If not then you would get more on one than the other, more likely you would get little to none out of one of them.
No, With an open Y splitter (no valves), the pressure in both bottles would always be the same. It might take a little while longer to pressurize the lines if one bottle is weaker than normal, but that's a one time thing. It will work fine


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post #5 of 8 (permalink) Old 08-31-2013, 08:07 PM
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Quote:
Originally Posted by Bandit1200 View Post
It is very unlikely that you would ever get a split to work. The only way it would work was if you had EXACTLY the same amount of back pressure on each line. If not then you would get more on one than the other, more likely you would get little to none out of one of them.






Quote:
Originally Posted by Chronados View Post
No, With an open Y splitter (no valves), the pressure in both bottles would always be the same. It might take a little while longer to pressurize the lines if one bottle is weaker than normal, but that's a one time thing. It will work fine

If your got pressurized co2 it may work because you have both ample supply and pressure. In a diy system where you most likely running a bit lean on both, you'll probably experience some differential if not one simply not working. Basically to get equal out of both diffusers you need to have everything exactly the same so you don't have loads in your lines. This is more visible with liquids but will still be an issue with gas. The diffusers also need to be exactly the same height in the tank and be pretty much the same, if one tends to use less pressure to operational the other then you'll see it getting more co2. Gasses similar to water always takes the path of least resistance.
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post #6 of 8 (permalink) Old 08-31-2013, 09:13 PM
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Originally Posted by Lornek8 View Post
If your got pressurized co2 it may work because you have both ample supply and pressure. In a diy system where you most likely running a bit lean on both, you'll probably experience some differential if not one simply not working. Basically to get equal out of both diffusers you need to have everything exactly the same so you don't have loads in your lines. This is more visible with liquids but will still be an issue with gas. The diffusers also need to be exactly the same height in the tank and be pretty much the same, if one tends to use less pressure to operational the other then you'll see it getting more co2. Gasses similar to water always takes the path of least resistance.
Oh wow, sorry, I completely misread the question. You are right. I thought he was asking if you could feed 2 bottles to a Y splitter


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post #7 of 8 (permalink) Old 08-31-2013, 09:14 PM
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Originally Posted by Bandit1200 View Post
It is very unlikely that you would ever get a split to work. The only way it would work was if you had EXACTLY the same amount of back pressure on each line. If not then you would get more on one than the other, more likely you would get little to none out of one of them.
That was my experience when I tried to do this.
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post #8 of 8 (permalink) Old 08-31-2013, 10:25 PM
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if you're running a splitter like this, get some suction cup holders, to make sure both diffusers are the same level.

Then use a piece of tubing, to create a dual Gang valve to keep equal pressure on both lines.

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