Question about check valves

queball753 · 11-20-2012, 03:57 PM

I am doing the DIY CO2 method for my fish tank. This forum has been awesome, but I just have one question. I bought a check valve, one side says in the other says out. Am I correct that the "in" side should be closest to the Yeast bottle?

nvladik · 11-20-2012, 04:38 PM

Sounds about right....

Edub · 11-20-2012, 05:08 PM

Mine has little arrows on it indicating the flow. Point the arrows away from your yeast and into your tank.

If your's just says "in" and "out" then yes, i'd say the "in" side is the yeast side and the "out" side goes to your tank.

Hmoobthor · 11-20-2012, 05:16 PM

try it which ever way...if there is no bubble.... switch that baby around and ur set

snakeplisken · 11-20-2012, 09:51 PM

just blow into it...

11-20-2012, 03:57 PM	#1
queball753 Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Nov 2012 Location: Colorado Posts: 6	Question about check valves I am doing the DIY CO2 method for my fish tank. This forum has been awesome, but I just have one question. I bought a check valve, one side says in the other says out. Am I correct that the "in" side should be closest to the Yeast bottle?

11-20-2012, 04:38 PM	#2
nvladik Planted Tank Enthusiast (View User Tanks) PTrader: (11/100%) Join Date: Jan 2012 Location: New York Posts: 631	Sounds about right.... __________________ NIKON pimp #017 Sump pimp #014

11-20-2012, 05:16 PM	#4
Hmoobthor Planted Tank Enthusiast (View User Tanks) PTrader: (12/100%) Join Date: Aug 2011 Location: WI Posts: 646	try it which ever way...if there is no bubble.... switch that baby around and ur set __________________ Eheim Pimp Club #506

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11-20-2012, 05:08 PM	#3
Edub Planted Member (View User Tanks) PTrader: (0/0%) Join Date: Mar 2011 Location: Missouri Posts: 190	Mine has little arrows on it indicating the flow. Point the arrows away from your yeast and into your tank. If your's just says "in" and "out" then yes, i'd say the "in" side is the yeast side and the "out" side goes to your tank.

11-20-2012, 09:51 PM	#5
snakeplisken Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Nov 2012 Location: R.I. Posts: 9	just blow into it...