Are any tips to preparing the scrap and sweeps so you get the best
Probably the best thing to do is to contact your refiner & ask them
if they have a preferred way to receive the scrap.
Many refiners like the scrap separated by soldered & unsoldered. If
you have pieces that have a small portion of solder on them, cut the
solder joints out & put them in a separate container/baggy. Keep the
sweeps separate from everything else. By all means, weigh each
container separately so you know how much material you've sent in.