Thoughts on improving blow by in RG reactors
I've always had an issue with my RG style based reactor in that the very small bubbles are able to exit the bottom of the reactor and escape into the aquarium where they may or may not end up dissolving completely.
Moving from a 2" to a 3" reactor body would more than double the cross section of tube, slowing the water flow too much and causing an air pocket to build up at the top of the reactor, which is noisy, and I just plain don't like it. Some deal with gas pockets by venting it occasionally, which wastes CO2, or recirculating into a venturi.
I'm thinking about taking a different approach, and would like to get some feedback on whether anyone thinks it will work, or if I'm building a square wheel.
I currently have a 2"x36" reactor, and am thinking about building one with a 2"x24" section which then widens into a 12" long section of 3" or even 4" pipe. My theory is that any bubbles small enough to be pushed out of the 2" section will still be too boyant to continue downwards through the 3" portion. They will circulate near the top of the 3" section and either dissolve, or combine and float back up into the 2" portion.
Does anyone know of anyone who has built something like this, or maybe even have built one yourself? I still have a few feet of 2" clear PVC laying around, so would just need a foot of 3" and a clear coupler to build the contraption. I will build it out of clear PVC just like my old one so that I can see what is going on inside rather than guess, which doesn't help much for finding methods of improvement.
If this works well, it could likely be scaled down to smaller diameter to eliminate air pockets for those who have that issue (I.E. 1.5" to 2" pipe).
Let me know if you think this will work. Let me know if you think it's a stupid idea also, and if this is the case be sure to be really condescending and insulting in your reply. Everyone needs to be knocked down a few pegs from time to time.