Originally Posted by 1930case
Not worthy of another thread, but now we have a HELIUM shortage. National Welders and Southern Welders have sent out notices, and it's expected to last a year or two.
If you use helium for aluminum welding, don't waste it. Many users such as gift shops cannot get the stuff at all. Used helium cylinders often go cheap on Craigslist, and since they have a CGA-580 valve can be converted or exchanged for mixed gas and argon. I've done three so far and keep an eye out since I'd rather spend less than a one year lease for a cylinder I can own. Once you own them, fills are cheap.
Actually I think you are wrong, that IS worthy of another thread! It may get overlooked here and that is info that may save a lot of guys some money, thanks for pointing that out.