Well, you're much better off using the ultrasonic then doing a rinse with a vacuum. ...
You cannot get a record as clean with an ultrasonic alone, filter or not, as you can by doing ultrasonic then vacuum rinse.
The stuff that ultra sonics break loose can resettle on the groves as there's no impetus for them not to unless you have enough water flow that the ultrasonic won't work correctly. And I've seen point nozzle machines ("small") - I specifically addressed them.
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