For mass desoldering I have used a solder fountain. Think a giant solder pot with a pump that pumps the solder up a large tube in the center. Works very well for through hole stuff.

We’ve talked about desoldering practices before as part of our newsletter, and using lots of melted solder for part removal is not a foreign concept to us, either.

In addition to the soldering iron and 10 interchangeable tips, it included the hot-air rework gun, a voltmeter for checking electrical circuits, and a desoldering pump for removing liquid solder.