Thanks @terry9 ,
There was a lot of info on the "Thumbs up for ultrasonic cleaning" thread that most here contributed to. I've found to be true the same as you and @dgarretson have said regarding overstating possible negative effects of heat up to 45c and higher frequencies than 40khz by others/other manufacturers. I do want to get a .5 micron pre-filter to go in front of my 1 micron filter next.
There was a lot of info on the "Thumbs up for ultrasonic cleaning" thread that most here contributed to. I've found to be true the same as you and @dgarretson have said regarding overstating possible negative effects of heat up to 45c and higher frequencies than 40khz by others/other manufacturers. I do want to get a .5 micron pre-filter to go in front of my 1 micron filter next.