I use a combination of oxygen and propane to solder and I recently ran out of oxygen. Without it, no soldering. The flame using propane alone is just not hot enough. The place I normally use is a little bit of a drive, so I thought a nearby medical supply place would be the answer. No such luck – they wanted a prescription.
So, yesterday my boyfriend took the oxygen tank in to get a full one. He brought it to me last night, we set it up, and there was no pressure – it was empty. So, he returned it today. They apologized, said they think they got a whole batch that was empty and gave us a full one. Tonight I am happy my soldering operation is back in business.
Getting an oxygen tank is just like getting propane for a gas grill. You turn in your empties and they give you full ones in return. Or, more precisely, you give them your halfway decent looking clean, tank and you get a cruddy one in return. I asked my boyfriend to make sure we get a nice one. He says there is no way he can walk into a welding supply store and ask for a cute tank. I accept this and am just happy to be back in business.