Solenoid cycles on CO2 to reactor: how often is too often?

[maron6977]

Originally Posted by Delphinus

Got a link for a 1/4" valve? I'm currently using this one (which seems to have good customer feedback, but is 1/8" not 1/4")

I have the thing currently barely open. If I close it any further I don't get consistent gas flow into the reactor. I've tried lowering the regulator output pressure so that I could open the valve more, but again I get weird effects when I do that. Ie., either the bubble rate stops altogether, or the reactor effluent stops .. stuff like that.

I'm all for using less CO2 though so if the answer involves moving to a different needle valve I would consider that.

Sorry , I should have been more clear.
I use a Milwaukee reg & solenoid w/bubble counter . Glycerin in bubble counter . 1/4" needle valve for effluent. I have a Geo 612 reactor & run at a PH of 6.5.
Also just added a second chamber , so effluent runs thru vertex reactor body filled with media & overflows into sump - trying to raise tank ph , seems to work.