I've got a Sharpe 606A that was given to me sometime back, and I've been using while running tools. While reworking my distribution pipes, I noticed a bunch of white stuff in the inlet, when I opened it, I was surprised to find it full of white crud. Looks like aluminium oxidation, probably from the housing. Also looks like the whole top plate has been oxidizing. The chrome is flaking off pretty bad. I would assume that the previous owner didn't drain it regularly, or stored it under water. Is this thing worth using any more, or should I just replace it, and if so any recommendations?
Thanks
John