Hey everyone I'm new to this forum and am seeking some advice.. I have a 300 gallon propane tank that has set with all the valves off for over a year.. its accumulated some rain water and there's still a faint smell of the chemical used to detect leaks.. A friend of mine (not the sharpest knife in the drawer) lit a lighter over one of the vents and nothing happened.. I plan to cut the doors out this weekend just needing a little advice and piece of mind from someone more experienced. Thank you I look forward to learning from all of you!!