I bought a new oxygen/mapp gas mini torch at Lowes yesterday and finally got to use it today. I had a little trouble at first trying ta get the solder ta stick, but after cleaning it really good and giving it another try the solder flowed out like butter. I put 40lbs.of air pressure to it and after sitting about an hour, it looks like I got my leak fixed. I'll put it back on and give it a try.