After reading Oqsy's excellent description of how to build a CO2 manifold https://www.plantedtank.net/forums/sh...ad.php?t=18110
I thought there must be a really cheap way to do this. After spending a lot of cash for tank and regulator I didn't feel like spending more for a commercial manifold, or spending the energy to get all these parts together (no Clippard distributor anywhere near here).
So after having some problems with my DIY CO2 setup (bubbles came out in spurts, and I could not figure out why) I bought one of these cheapo air regulating valves, and connected it via T after the needle valve of my Milwaukee all-in-one and a long run of CO2 proof line to a Hagen ladder.
The "unregulated" side of the T feeds into a external reactor for the 100 gal tank, while the regulator adjusts what goes into the Hagen ladder on my 10 gal tank. So far it is working great, really easy to fine-tune since you can see the delay of the bubbles that go up the ladder. The bubble counter of the Milwaukee is set to about 150 bubbles per minute, and the ladder does about 25 bubbles per minute, so the difference goes into the ext reactor of the 100 gal tank (hopefully, hehe).
Two possible problems: How stable will the plastic thing maintain the bubble count over time? And: How will the canister filter back pressure affect the bubble count, i.e. how different will it be with a clean canister filter versus one that's pretty much plugged up and needs cleaning?
I can already see that the high pressure CO2 bubbles dissolve much better than the ones that came out of my DIY rig.
To add to Mike's favorite commercial...
Air controller valve: $5
Plastic T and some airline: $2
Not having to mix sugar and water and wondering what will come out of the soda bottle: PRICELESS !!!