Repairing aluminum pits

["Bill Eastman" <william.eastman@medtronic.com>]

The bonnet I am working on has a few corrosion pits.  One looks to be
all the way through. Most of them are 1/8" or less diameter at the
surface.  What should I do about these?  Should I just dump some Bondo
on top and be happy?  How should I clean them?  Has anyone used that
aluminum brazing rod you are supposed to be able to use with a propane
torch?  Would this be the best material to fill the pits?  Are you sick
of me yet?

Regards,
Bill Eastman
Still a 61 MGA