Why do you want a solder pot? They are useful. As [Coalpeck] shows, you can use them to dip solder a through hole PCB easily enough. They are great, too, if you want to tin a lot of wires.
What do you do if you have to solder thousands of through-hole parts? The expensive, professional way of doing this is running the boards through a wave soldering machine, or a machine with a ...