New Ultrasonic Cleaner

George Jets said
Experience with both boats and Ultrasonic cleaning machines.

Cavitation happens on the low pressure side of boat propellers when they are under power.

Cavitation:
Cavitation is a phenomenon .

You missed my point. I know what cavitation is

My point is that "I'm not sure" that the ultrasound agitation will reach inside tiny bleed and idle ports. I'm asking "how do you know that?" ---meaning are you positively absolutely certain it will or won't clean tiny internal passages