Hello I have a 4 chamber Gas Manifold and on one of the lines I have a homebrew carbonating at 20psi, and on the other line I have a dogfish 90minute that is ready to drink, but Im confused about how to keep my homebrew carbonating at 20psi and have my dogfish at dispensing levels. Is there a technique without buying a secondary regulator to dispense my beer while carbonating another using a 4 chamber Gas Manifold? Can i slightly turn the gauge on the manifold a quarter of the way open to only receive a fraction of the 20psi?