I've gotten waaayyyy behind in cleaning... I've probably got 150 lp's that I've bought that need cleaning. So I opened some wine and got started. Got a 12-15 done.
By the way, BE WARNED.
These things are so much louder than you realize. Unfortunately I need hearing aids. While auditioning an "upgrade", one of the programs reached up to 50K Hz and re-interprets it down to frequencies I can hear--- and DAMN the ultrasonic cleaners are loud. Like, wear hearing protectors or leave the room when they are running, type loud. Seriously guys. These are probably too loud to safely be around when operating. My audiologist has no knowledge of the effects on ultrasonic on human hearing, but better safe than sorry.
Be careful with your hearing. You can't replace it well when it's gone.