View Full Version : Co2 Into Canister Filter
vrssbt1
5th July 2007, 11:15 PM
hey all just wondering if anyone here knows how you plumb your diy co2 into a canister filter???
I was thinking of just drilling a hole in the intake tube and sticking a piece of silicone tubing in to that!!!!! But it cant be that easy can it???
wombat1100
6th July 2007, 08:00 AM
Mate everything I do I work on the KIS principal
Keep
It
Simple
I would be running a line into the tank and up the inlet, no holes , nothing to cause problems!
That is unless your running a strainer on the end of your intake, (which i don't) then you will need to put a hole in there, BUT make sure you use a one way valve just in-case you get a air line siphoning your tank in a accident.
If you do decide to drill a hole in the intake tube make sure its below the water line, that way if it leaks it will only leak into the tank.
Dazz
vrssbt1
6th July 2007, 11:37 AM
i read that it is bad for the impellor or something like that so i will probably just plumb it into the output line
joz
6th July 2007, 08:07 PM
What you don't want to do is add CO2 to your nitrifying bacteria in your cannister.
The bacteria thrives on oxygenated water.So I'd say this is a bad idea.
Also what would stop the pump pushing water the wrong way into your DIY CO2 bottle??
If you must keep the CO2 bubbles in suspension,I would suggest adding the outlet to a submersible pump to push the bubbles downward.If you do this you can have the pump on ther same switch as your lights.This way you would not be adding CO2 at night,this is also something you don't want.
Clear as mud :)
vrssbt1
6th July 2007, 08:37 PM
well ive decided to plumb the co2 into the outlet's spraybar which is going to be a custom unit in it self so will see how that goes
joz
6th July 2007, 10:32 PM
If you add the CO2 to the spray bar above the surface you will most likely loose all the gas directly into the air.
You have to keep it suspended under the water for it to be dissolved.
Good luck :)
joz
6th July 2007, 10:36 PM
Maybe try to read about CO2 diffusers just to get more idea about the concept of CO2 absorbtion into the tank.
CO2 Reading here (http://www.dupla.com.au/pages/co2.php)
vrssbt1
7th July 2007, 12:35 AM
If you add the CO2 to the spray bar above the surface you will most likely loose all the gas directly into the air.
You have to keep it suspended under the water for it to be dissolved.
Good luck :)[/b]
the spraybar will be underwater
vrssbt1
7th July 2007, 12:37 AM
Maybe try to read about CO2 diffusers just to get more idea about the concept of CO2 absorbtion into the tank.
CO2 Reading here (http://www.dupla.com.au/pages/co2.php)[/b]
i know bout absorbtion and all that was just thinking of different ways to diffuse the co2
Mjay~Fish-Freak
14th July 2007, 11:02 PM
i use a mini power head to draw the co2 in, i connect a silcone pipe to one of the attacments and drill a hile in a 2 litre bottle thread the silcone tubing in and dilcone around it to keep it air tight. my main problem is always with my mixture for making the co2 rather than diffusing it into the tank, if anyone has a good sugar/yeast ratio/recipe i'd like to hear it.
mac_man_luke
15th July 2007, 12:23 AM
water temp is a major factor in yeast activity
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