Planted Tank Obsessed
Join Date: Apr 2009
Location: Los Angeles, CA
Complete Leak Check, CO2 pressurized system
I loosen the screw just a bit, turned the front knob (regulating valve) to increase it to 80psi, then tighten the back screw. I did this while having the reg attached to the co2 tank completely opened.
I did not remove the back knob completely.