Audio Desk Record Cleaner

How can you tell if the transucers are working as I see no bubble action in the water bath as the record turns?

I have had this cleaner for a few weeks now. I don't think it cleans any better than my Clearaudio cleaner. This cleaner did not remove pops like Michael Fremer said. I now know why he said that probably got his cleaner for a few dollars. I like this because it does both sides and there is no effort by me. Yes I think it is great, but no better than my Clearaudio.

Rfogel8 if the transducers are defective and the record was cleaned with just the rollers, I'm sure the record would look just as clean. Like I said usually with ultrasonic cleaners you can see some sort of bubble action.

The problem is to clean first on the KL and then go to the Audio Desk. I bet you get the same results. I found in the past the more you clean the record the better it sounds.