Hi Boret, thanks for the welcome and answers to my questions.
As for pressure wouldn't a sealed or screw capped PVC tube do the same thing as the bolted top of the reactor dan built?
As for adjusting the pressure in the reactor isn't that what the gauge is for you can monitor the pressure within the reactor using the gauge after you tweak the input/output of the water?
Kind of a bummer about the read sea air dryer not working with the luft pump. I have an old ro/di cartridge i could mod pretty easy. As for the relief valve is there a switch on the valve or does it just let pressure out into the air around it? If so we would need a carbon output on that to get rid of any o3.
I plan to add the bio bale and drip plates for the reactor i just have to find where to buy the bio bale locally if possible. I think the PVC can be pressurized and as for flow it can be calculated with some baic math after you determine how long it takes to fill 250ml from the output.
Pics of the setup would be great too.