thanks ..but have tank and regulator..its just a different way of controlling output..(really fine adjustments)
to get .04 cu* per hr (works out to 1 liter) il just bubble off into a water bath and adjust that way.
i think i got it figured out..
old grower new setup setting up small tent (32 cu*). in a hallway (800 cu*)
have co2 bubbler setup but cant find any info on how to calculate flow rates.
bubbles per min x hrs on..