I was reading The Red Ferret Journal yesterday and thought the Ultimate Water Gun looked familiar. Well [-Pat] had sent this flamethrower build in the day before. It is the same build, but the red ferret link was to a super soaker forum, so it doesn’t shoot flames. The forum post is a little more detailed on the construction. Just read both and prepare to remove yourself from this planet. In all seriousness, please be careful if you are playing with fire or just pressure testing PVC.