Hi yes getting hold of germanium is quite hard, i bought one sample on ebay which turned out to be wrong as it didnt melt (probably silicon), to use the germanuim i have a small furnace which gets to around 1100 deg into which i melt the solder then when at full temp I add the germanium to around 2% by weight.
So not as simple as just dropping it in the bath, the germanium does reduce the dross but it doesnt stop it. Whether its worth all this effort i dont know.
So not as simple as just dropping it in the bath, the germanium does reduce the dross but it doesnt stop it. Whether its worth all this effort i dont know.