Gas cylinders can pose a huge safety risk if they are cared for and/or handled improperly. Samantha Noland of nexAir outlines a few best practices to make sure you are handling your cylinders safely.
Shop had a tank catch fire where I live, workers dragged it outside and let it burn all day, all safe. Another place fire men came, put water on fire, tank exploded, whole row of people killed.
When the gentleman used the crescent wrench to tighten the regulator, he was using the wrench in the wrong position. When he loosened the regulator, he had the wrench in the correct position
