the only true method of changing pressure on your regulator is to unplug the co2 from all kegs, bleed your kegs head space completely, turn the pressure down on the regulator, pull the bleed valve on the regulator until it reaches 0, hook the co2 back up to your kegs, turn it up to your desired pressure.
you can get false readings if the kegs are not bled completely
you can get false readings if the kegs are not bled completely
