Quote Originally Posted by Jazzmarazz View Post
I use a leaded/flux core solder. But I also use a liquid flux pen; more commonly available in a tub of paste. Flux assists in heat distribution and surface/contaminent cleaning. If the old existing solder or HASL/ENIG surface has oxidized, it will be very difficult for you to solder it. Flux makes this a billion times more easy to do.

While you're making some purchases, grab a spool of copper solder wick to help remove the old solder currently bonding the old jack to the mobo.
I have been looking for solder and trying to find a store I can pick it up from instead of ordering it online now will either of these work?
rosin core
acid core