P proton Fish Crazy Joined Sep 6, 2006 Messages 260 Reaction score 1 Location North London Nov 13, 2006 #1 i got this as i wanted to count the bubbles from my DIY CO2 injector, but which way is up? and how do i use it? do i fill it up with a little water? which side do i attach to the diffuser?
i got this as i wanted to count the bubbles from my DIY CO2 injector, but which way is up? and how do i use it? do i fill it up with a little water? which side do i attach to the diffuser?