You do NOT adjust a 2 stage or single stage 12 volt Gas valve. They are not safely serviceable. A COMPETENT Service Tech and Shop KNOWS this. If you have 11.5 inches at the gas valve and too low pressure at the orifice, you replace the Gas Valve. YOU can do what you want with your gas valve. But any knowledgeable Technician and shop know the liability of messing with LP gas valves and would replace which is what is required. Hopefully, Your future epitaph will not say, "I should have had a scab look at it". To the moderator, why is this poster allowed to denigrate RV Technicians by calling them scabs and you do not edit his post? Doug