LMichaels
TVWBB 2-Star Olympian
I have seen blockages on my own orifices (main ones screwed into the valves). So yes. Good idea to clean them. As for the secondary fitting. It's for a side burner. On some earlier Weber's they used the 1/8" NPT to 3/8" Flare for fitting a side burner and used the little 1/8" NPT elbow for the regulator. The fitting (the 3/8" one) came with a cap on it. When you bought a side burner it came with the hose that already had the 3/8" flare fitting (female) on it. Take off the cap and connect the burner. EZ PZ