I personally completely disassemble anything that goes into the ultrasonic. Small internal parts and springs go into a can of carb cleaner. And case colored parts go into the ultrasonic. I have not personally had Springs break in the ultrasonic, but I have heard of it happening. So I don't take the chance.
Plus, I want to make sure that no moisture is trapped inside of things after taken out. If all is broken down, all can be dried off and well oiled before re-assembly.
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B. Dudley
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