A backyard barbeque grill contains a \(20-\mathrm{lb}\) tank of propane. The propane leaves the tank through a valve and regulator and is fed through a \(1 / 2\)-in. rubber hose to a dual-valve assembly. After the valves, the propane flows through a dual set of ejectors, where it is mixed with air. The propane-air mixture then arrives at the burner assembly, where it is burned. Describe the possible propane release incidents for this equipment.