My first time using copper shielding tape and a soldering iron, though I have done some plumbing before. I've taped all the cavities (which is not as easily as everyone makes it out to be, but I'm also very impatient), and now I have to solder the joints. I'll "tin" the tip, put the tip on the joint and put the solder near it and nothing happens... The solder doesn't melt or anything. I really have no idea how to do this. I'm going to have to make some wire joints, and things to try and test it out, but right now I'm lost. Any tips, on any of this, would be great. Thanks.